What Happens If You Drink Too Much Coffee? (Perfect answer)

Too much caffeine can cause high blood pressure, a precursor to heart disease, and can cause side effects like dizziness, shakiness, headache, or abnormal heartbeat.


What happens if you drink too much coffee in a day?

Caffeinated coffee is POSSIBLY UNSAFE when taken by mouth for a long time or in high doses (more than 4 cups per day). Drinking large amounts of caffeinated coffee might cause headache, anxiety, agitation, ringing in the ears, and irregular heartbeats.

Is it harmful to drink too much coffee?

Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That’s roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two “energy shot” drinks. Keep in mind that the actual caffeine content in beverages varies widely, especially among energy drinks.

Can coffee make you gain weight?

Coffee alone does not cause weight gain — and may, in fact, promote weight loss by boosting metabolism and aiding appetite control. However, it can negatively affect sleep, which may promote weight gain. Additionally, many coffee drinks and popular coffee pairings are high in calories and added sugar.

Is 3 cups of coffee too much?

So how much coffee is the optimal amount to drink to get all the benefits, but avoid the negative side effects? According to the Dietary Guidelines for Americans, it’s safe for most women to drink three to five cups of coffee a day with a maximum intake of 400 milligrams of caffeine.

Does coffee make you poop?

While caffeine is a great energy booster, it may also stimulate the urge to poop. Several studies have shown that it can activate contractions in your colon and intestinal muscles ( 4, 5 ). Contractions in the colon push contents towards the rectum, which is the final section of your digestive tract.

Is coffee good for skin?

Results of a study from 2013 suggest that substances in coffee also help to promote healthy skin. Caffeic acid, an antioxidant, may boost collagen levels and reduce the premature aging of cells. Caffeic acid also has antimicrobial properties, which means that it may help protect the skin against germs.

Is coffee hard on your liver?

Over time, it can cause cirrhosis or scarring of the liver. That scarring can lead to liver cancer or liver failure. But research shows that people who drink a lot of coffee have a lower risk of developing nonalcoholic fatty liver disease.

Does coffee make your belly big?

If a person drinks a lot of coffee or is under a lot of stress, then there is this constant level of cortisol floating around in the body. Over time, the body can’t bring the cortisol levels back down to normal, which can lead to an increase in belly fat.

What is a black coffee?

Black coffee is a beverage made from roasted coffee beans. The beans are ground and soaked in water, which releases their flavor, color, caffeine content, and nutrients. Although coffee is often served hot, it can also be served iced.

Does coffee make you fart?

This may surprise you, but coffee can indeed cause gas. When you drink it on an empty stomach, and it reduces the hydrochloric acid, your stomach may have trouble breaking down protein. All that undigested protein starts eating all the gut bacteria that produce hydrogen sulfide. The result is, well, a gassy stomach.

Is 10 cups of coffee too much?

Drinking a few cups of coffee per day is considered moderate intake. If you drink 10 or more 8 oz. cups of coffee each day, you are likely to suffer from a series of side effects. Dehydration, nausea, rapid heartbeat, shaking and difficulty sleeping are just some of the side effects of drinking too much coffee.

How much coffee is too much for a teenager?

For kids and teens, the American Academy of Pediatrics suggests caution. Adolescents ages 12 to 18 should cap daily caffeine intake at 100 mg (the equivalent of about one cup of coffee, one to two cups of tea, or two to three cans of soda).

How many coffees a day is OK?

Evidence indicates that 4–5 cups of coffee per day may be the optimal amount. This amount is linked to the lowest risk of premature death, as well as a lower risk of numerous common diseases, some of which affect hundreds of millions of people.

Caffeine: How much is too much?

Caffeine has many advantages, but it can also cause issues. Learn how much is too much and whether or not you need to reduce your usage. Staff at the Mayo Clinic If you rely on coffee to get you out of bed in the morning and keep you going throughout the day, you are not alone. Every day, millions of individuals rely on coffee to keep them awake and increase their attention levels.

How much is too much?

Most healthy persons appear to be able to consume up to 400 milligrams (mg) of caffeine per day without experiencing any adverse effects. Approximately the amount of caffeine contained in four cups of freshly ground coffee, 10 cans of cola, or two “energy shot” beverages. You should keep in mind that the actual amount of caffeine contained in beverages varies greatly, particularly among energy drinks. The Food and Drug Administration of the United States has warned that caffeine consumed in powder or liquid form can result in hazardous quantities of caffeine.

Such high doses of caffeine can result in major health concerns, and even death, if not treated promptly.

A warning should be sent to adolescents and young adults about excessive caffeine consumption as well as the dangers of combining caffeine with alcohol and other substances.

Even in adults, excessive caffeine use might result in undesirable side effects.

Continue reading to find out if you should cut back on your coffee intake.

You drink more than 4 cups of coffee a day

If you’re consuming more than 4 cups of caffeinated coffee a day (or the equivalent) and experiencing negative effects such as the following, you might consider cutting back.

  • Headache, insomnia, nervousness, irritability, frequent urination or difficulty to regulate urine, rapid heartbeat, muscle tremors, and other symptoms

Even a little makes you jittery

People react differently to caffeine depending on their genetic make-up. If you’re sensitive to the effects of caffeine, even tiny doses might cause unpleasant side effects such as restlessness and sleep issues in vulnerable individuals. The amount of caffeine you’re accustomed to consuming may have an impact on how you react to caffeine in general. People who do not routinely use caffeine are more susceptible to its effects than those who do.

You’re not getting enough sleep

Even in the afternoon, caffeine might have a negative impact on your sleep. Even little sleep deprivation can accumulate over time and impair your ability to stay alert and function well during the day. Caffeine use to alleviate sleep deprivation can lead to a vicious cycle of overindulgence.

Drinking caffeinated beverages, for example, may be necessary if you are having difficulty staying awake during the workday. However, the caffeine prevents you from falling asleep at night, resulting in you sleeping for a shorter period of time.

You’re taking medications or supplements

There may be an interaction between caffeine and some drugs and herbal supplements. Examples include the following:

  • Ephedrine. This medicine, which is found in decongestants, may raise your risk of high blood pressure, heart attack, stroke, or seizure if you combine it with caffeine. This medicine, which is used to open up the bronchial airways, has been shown to produce caffeine-like effects in some people. Because of this, consuming Echinacea with caffeine may exacerbate the negative effects of caffeine, such as nausea and heart palpitations
  • Echinacea is a natural antibiotic. This herbal supplement, which is sometimes used to treat colds or other infections, may raise the concentration of caffeine in your blood, which may exacerbate the unpleasant effects of caffeine
  • Nevertheless, it is not recommended.

Consult with your doctor or pharmacist to determine whether caffeine may have an impact on your medicines.

Curbing your caffeine habit

Cutting back on caffeine may be difficult, whether it’s for one of the reasons listed above or simply because you want to save money on coffee beverages. Withdrawal symptoms such as headaches, weariness, irritability, and trouble concentrating on activities may occur if caffeine intake is reduced abruptly or stopped altogether. Fortunately, these symptoms are often moderate and subside within a few days of the onset. Try the following strategies to break your coffee addiction:

  • Keep an eye on things. Start keeping track of how much caffeine you’re consuming through foods and beverages, especially energy drinks. Pay close attention to the labeling. However, keep in mind that your estimate may be a bit low because certain foods or beverages that contain caffeine are not included on the label
  • Reduce the amount of time you spend on it gradually. Drinking one fewer can of soda or one fewer cup of coffee each day, for example, will help you lose weight. Alternatively, refrain from consuming caffeinated beverages late in the day. This will assist your body in becoming used to the reduced levels of caffeine and will reduce the likelihood of experiencing withdrawal symptoms. Make the switch to decaf. The majority of decaffeinated beverages have a similar appearance and flavor to their caffeinated counterparts. Reduce the brewing time or switch to herbal tea. When brewing tea, brew it for a shorter period of time. Its caffeine level is reduced as a result of this. Alternatively, look for herbal teas that are caffeine-free
  • Check the label. Caffeine is found in several over-the-counter pain medications, but not all of them. Instead, look for pain medicines that are caffeine-free.

The bottom line

When it comes to grownups, caffeine is likely to be a part of their daily routine. Generally speaking, it will not cause any health problems. However, be aware of the potential adverse effects of caffeine and be prepared to reduce your intake if required.

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  1. Lieberman, H.R., and colleagues Based on the National Health and Nutrition Examination Survey (NHANES) 2007-2012 surveys, this study examined the daily patterns of caffeine intake and the connection of intake with a variety of sociodemographic and lifestyle characteristics in U.S. adults. Journal of the American Academy of Nutrition and Dietetics, 2019
  2. Doi:10.1016/j.jand.2018.08.152
  3. Dietary Guidelines for Americans, 2015-2020
  4. Journal of the American Academy of Nutrition and Dietetics, 2019. Departments of Health and Human Services and the Department of Agriculture of the United States On the 1st of February, 2020, accessed I’ll spill the beans on how much caffeine is too much: how much is too much? The Food and Drug Administration of the United States. accessed on the 20th of September, 2019
  5. Duyff RL is a football club based in the Netherlands. Consider the drinks you’re about to consume. The Academy of Nutrition and Dietetics’ Complete Food and Nutrition Guide, 5th edition, has a list of sources. Houghton Bordeaux B. Mifflin Harcourt
  6. 2017
  7. Mifflin Harcourt
  8. Bordeaux B. Caffeine and caffeinated drinks have both advantages and disadvantages. Accessed on September 20, 2019
  9. Caffeine that is pure and very concentrated. The Food and Drug Administration of the United States. Caffeine. Natural Medicines. Natural Medicines. Accessed on September 20, 2019. This page was last updated on February 7, 2020.
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Learn the 11 symptoms of too much caffeine

Many foods and beverages contain caffeine, and it may be found in a range of goods, including coffee. Caffeine can be found in a variety of foods and beverages, including coffee, tea, cocoa-based beverages, soft drinks, energy drinks, candy, gum, and other packaged goods. The caffeine level of these meals and beverages varies from product to product and can vary anywhere from 50 to 500 milligrams per serving (mg). Approximately 85 percent of the population of the United States consumes at least one caffeine-containing beverage every day.

According to other studies, an average of 180 mg of caffeine is ingested daily in the United States.

How Much Caffeine Is in This?

The quantity of caffeine included in various foods and beverages might vary. Here are some ballpark figures for each item:

  • Approximately 30-40 milligrams (mgs) of caffeine per 12 ounces (oz) of caffeinated soft drink
  • 8 ounces (oz) of green or black tea (approximately 30-50 milligrams)
  • 8 ounces of coffee has 80-100 milligrams of caffeine
  • 8 ounces of decaf coffee contains 2-15 milligrams of caffeine
  • 8 ounces of energy drink contains 40-250 milligrams of caffeine
  • 1 ounce of dark chocolate contains 12 milligrams of caffeine

These are representative averages. Always check the label to ensure that you are not taking more caffeine than you planned. For the majority of people, caffeine may be a beneficial component of a balanced diet. Having more than four or five cups of coffee a day, on the other hand, may be harmful to your health.

This article addresses how much caffeine is too much for a person to consume. Learn about the signs and symptoms that arise when you overindulge in coffee, as well as what you can do to limit your intake and improve your overall health. Photo by Pakin Songmor for Getty Images

Symptoms of Too Much Caffeine

When caffeine consumption surpasses a safe level, it may result in negative side effects. The following are some of the signs and symptoms of consuming too much caffeine:

  • Headache, anxiety, difficulty sleeping, irritability, increased heartbeat, increased thirst, frequent urination, chest discomfort, and other symptoms


As a psychostimulant (a drug that stimulates the central nervous system), caffeine is widely utilized in both medical and recreational settings. This is why many individuals use caffeinated beverages such as coffee or tea as a morning pick-me-up. The use of caffeine as a pain reliever is not uncommon; for example, the pain reliever Excedrin, which includes aspirin, paracetamol, and caffeine, is common. Headaches, on the other hand, can be caused by both overconsumption of caffeine and withdrawal from caffeine.

If you use large amounts of caffeine, you may experience withdrawal symptoms after the early advantages of caffeine have worn off.

Although it is recommended to prevent daily usage if you suffer from regular headaches, there are certain exceptions.


Caffeine may have a negative impact on your mood. Even while modest caffeine use might add to emotions of happiness, consuming two to six cups of coffee can cause feelings of anxiety. Anxiety is characterized by the sensation of being wound up, restless, or on edge. A study of 57 research examined the effects of caffeine on anxiety after different doses of the stimulant were consumed. When it comes to both low and high intakes, the results were inconsistent. According to other studies, drinking up to five cups of coffee per day had no effect on anxiety.

Whether you experience mild or high levels of anxiety, it might suggest that you are consuming too much coffee and that you should reduce your intake.

Trouble Sleeping

If caffeinated beverages are drunk close to bedtime, moderate and high levels of caffeine may induce modest sleep disruptions. Having a cup of coffee before bed might diminish the amount and quality of sleep you get, as well as make it more difficult to fall and remain asleep. It is suggested that you avoid coffee for at least six hours before going to bed. However, if you use coffee on a daily basis, its effects on your sleep will become less damaging with time. Over time, your body might become used to the effects of coffee and develop a tolerance to it.


Caffeine use can also cause feelings of irritation, however this has only been noticed in those who take large amounts of the stimulant. However, if you already have a psychiatric or anxiety issue, you may suffer irritability even if you consume less coffee than the typical individual. Although more study is needed to determine exactly how much caffeine causes irritability, you may want to reduce your caffeine intake if you notice yourself becoming irritated or agitated after ingesting caffeine.

Increased Heartbeat

Caffeine has a variety of impacts on the cardiovascular system. The consumption of just four cups of coffee, according to some studies, might produce minor variations in heart rate. Another minor study discovered that drinking five cups of coffee did not have any effect on the heart rate of persons who had heart disease. It’s possible that this is related to the body’s ability to break down caffeine. Slow caffeine metabolizers were shown to be more at risk for heart disease even after drinking only two or three cups of coffee per day.

It is also possible that a quick heartbeat is caused by a caffeine allergy, sensitivity, or another health concern. If caffeine has an adverse effect on the heart, it is suggested that you reduce or eliminate your caffeine intake.

Increased Thirst

According to research, even little caffeine consumption might cause some people to become more thirsty. Thirst was the most noticeable sensation experienced by casual caffeine drinkers, even after only one cup of coffee. Those who consume coffee on a regular basis were unable to perceive thirst at this concentration. There is no evidence that excessive caffeine consumption has an impact on thirst. However, it is plausible that being thirsty is caused by high amounts of caffeine in the bloodstream.

Frequent Urination

Caffeine has diuretic properties. This is a chemical that stimulates the production of urine and causes you to have to go to the bathroom more frequently. As the kidneys filter the blood, caffeine can increase blood flow to them, impairing their capacity to reabsorb salt and water, resulting in a rise in urine in the bladder. Caffeine can also cause an increase in urine production in the kidneys. Caffeine may have a diuretic impact on people who have an overactive bladder, which makes them more prone to it.

According to one study, drinking around four cups of coffee per day resulted in lower levels of thiamin, B12, calcium, magnesium, sodium, phosphate, chloride, and potassium.

While it is yet unclear how increased caffeine intakes influence the bladder, the desire to pee on a regular basis might signal that you are consuming too much caffeine or that you have another medical issue.

Chest Pain

Blood flow to the heart is obstructed, which results in chest discomfort. The effects of caffeine on blood flow grow as the amount consumed rises. As a result, excessive coffee use may result in chest discomfort. However, because the quantity of caffeine required to produce chest discomfort is often quite large, the overall risk is modest if you just consume one to three cups of coffee per day, according to the American Heart Association. When drinking fewer than two cups of coffee, those with health concerns, using medications, and/or being caffeine sensitive may have reduced blood flow and chest discomfort.

Make sure you get medical attention as soon as possible.

Allergic Response to Caffeine

If ingesting coffee causes you to have breathing difficulties, you may be suffering from a caffeine allergy. If this occurs, discontinue use of the product immediately and seek medical attention. If you are suffering signs of anaphylaxis, such as problems breathing, hives, low blood pressure, or pale skin tone, dial 911 immediately.

Caffeine and Medications

Caffeine consumption may have an adverse influence on the efficacy of drugs as well as the way they operate. Coffee consumption has an impact on the performance of the following prescription medications:

  • Antidepressants, sedatives, antipsychotics, blood pressure meds, anticoagulants, Alzheimer’s and Parkinson’s medications, cancer treatments, thyroid medications, antibiotics, nonsteroidal anti-inflammatory drugs, migraine medications, estrogen, oxandrolone, and other anabolic steroids

In order to avoid difficulties with absorption, consult your doctor about how caffeine may interact with your medicines.

Caffeine Can Affect How Medications Work

Caffeine has the potential to either enhance or reduce the amount of medicine absorbed.

This has the potential to change the effects of the medication. Inquire with your healthcare physician about the possibility of caffeine interfering with your medications.

Tips to Reduce Caffeine Intake

Here are some suggestions to help you reduce your caffeine intake:

  • Eliminate or reduce caffeine intake by substituting high-caffeine meals and beverages with low- or no-caffeine alternatives. If you want to avoid caffeine withdrawal, you should start by limiting your caffeine intake. Trying ordering half-caf coffee (coffee that is half caffeinated and half decaf) or converting your second cup of tea to herbal, for example, will help you save money. Drink plenty of water: Drinking extra water will help you battle weariness and enhance your mood as well as your energy level. Increase your intake of nutrients by eating more of the following: Vitamin C, iron, magnesium, zinc, fiber, and the B complex vitamins have all been shown to alleviate weariness in studies. Among the foods that include them are dairy products like milk and cheese as well as chicken and organ meats like tuna, mackerel and salmon as well as whole grains and colorful and leafy green vegetables.

Official Caffeine Recommendations

It is recommended that you consume no more than 400 milligrams (mg) of caffeine per day, according to the United States Food and Drug Administration. This equates to around four or five cups of coffee each person.


Caffeine is a naturally occurring stimulant that has the ability to affect brain and body function. Most people consume at least one caffeinated beverage every day, primarily in the form of coffee, tea, and soda, according to the latest statistics. Moderate caffeine use has been linked to increased energy, improved mood, weight loss, improved cognitive, and improved athletic performance. Too much caffeine, on the other hand, might result in headaches, anxiety, insomnia problems, irritability, respiratory problems, chest discomfort, thirst, and frequent urination, among other side effects.

Caffeine can trigger allergic reactions and interfere with the effectiveness of some drugs.

Water and nutrient and fiber-rich foods such as vegetables, nuts, and seeds might help you consume less caffeine by increasing your consumption of these nutrients and fiber-rich foods.

A Word From Verywell

Caffeine may have a variety of effects on different people. If you are experiencing pain as a result of your caffeine intake, lowering your intake may be beneficial. Depending on how much caffeine you use on a regular basis, stopping cold turkey may result in withdrawal symptoms for some people. Slowly reducing one’s intake can help keep these symptoms under control. If you have any concerns about how caffeine is affecting you, you should consult with your doctor.

Frequently Asked Questions

  • Can you tell me how much caffeine is in a cup of coffee? The amount of caffeine in a cup of coffee varies based on its size and kind. A cup of brewed coffee containing 8 ounces (oz) has around 96 milligrams (mg) of caffeine. A cup of instant coffee containing 8 ounces has 62 mg of caffeine. A one-shot (1 ounce-1.75 ounces) cup of espresso contains between 63 and 110 mg of caffeine, depending on the brand of espresso. The size of coffee cups ranges from 8 to 31 ounces. Caffeine will be present in greater quantities in larger glasses. Can you tell me how much caffeine is in a cup of green tea? A cup of green tea has 30-50 mg of caffeine in an 8-ounce serving. Is it harmful to consume an excessive amount of coffee? Consuming more than 400 milligrams of caffeine per day has been linked to symptoms such as sleeplessness, restlessness, nervousness, a rapid heartbeat, an upset stomach, a headache, and a depressed mood. Male infertility, cancer, heart disease, psychological disorders, and weaker bones are all possible side effects of using this product. What is the best way to get rid of caffeine from your system? The best technique to get rid of caffeine is to just wait it out. It takes around 3 to 6 hours for caffeine to be eliminated from the body. What is the best way to go asleep after consuming too much caffeine? Allowing caffeine to exit your system is the only thing that can help you sleep better. What is the maximum amount of caffeine you may consume when pregnant? It is recommended that you restrict your caffeine intake to less than 200 mg per day (about one and a half 8-ounce cups) when pregnant, attempting to get pregnant, or nursing. What is the maximum amount of caffeine you may consume before a workout? When given 60 minutes before activity, doses between 1.4 and 2.7 milligrams per pound of bodyweight were shown to be the most effective. What is the caffeine content of decaf coffee and is it truly caffeine-free? No, decaffeinated coffee does not contain any less caffeine than regular coffee. Coffee with decaf has around 2-15 mg of caffeine in an 8-ounce cup.

7 Signs You’re Drinking Too much Coffee

Photograph courtesy of Russell Johnson/Shutterstock

You feel anxious

When you are thinking about an approaching event or deadline, it is natural to want to get a warm cup of coffee to relax. The National Institute of Mental Health, on the other hand, advises persons who suffer from anxiety to stay away from coffee. Why? To the contrary, drinking too much coffee can exacerbate the symptoms of anxiety, either by depriving you of adequate sleep or by activating your fight or flight response. Twenty-five men were subjected to a modest amount of caffeine or a placebo before completing a stressful assignment in a 1990 research published in Psychosomatic Medicine.

Find out if drinking black coffee is beneficial to your health.

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Your stomach hurts

Stomach discomfort may be associated with bad food or menstrual cramps, among other things. You should include your morning cup of coffee on this list as well. The discovery was made by European scientists in 2017 that specific chemicals in coffee encourage the production of stomach acid by the cells of the stomach. Taking an over-the-counter medicine such as Tums can help to neutralize the acid for a brief period of time, but if you feel that coffee is causing your stomach pain, you should consider modifying your coffee drinking habits.

When you consume coffee on a daily basis, your body experiences the following seven changes. igorstevanovic/shutterstock

Your heart is racing

It might be unsettling to have the sensation that your heart is racing too quickly. Some people report that they feel as if their heart is attempting to escape from their ribcage. Heart palpitations can be brought on by overindulging in coffee and caffeine, nicotine, and even alcoholic beverages. Some people experience dizziness and even fainting episodes as a result of a speeding heart. An article published in the journal Frontiers in Psychiatry in 2017 found that 94 percent of clinicians advise patients experiencing fluttering heart beats to discontinue caffeine use.

You have diarrhea

Almost everyone is aware that coffee’s laxative qualities can aid in the maintenance of normal bowel movements. According to the International Foundation for Gastrointestinal Disorders, if you drink more than two or three cups of coffee a day, you may get diarrhea as a result. If you discover that your restroom troubles have become overwhelming, the IFFGD suggests that you gradually reduce your coffee use. (Does coffee make you dehydrated? (Find out for yourself.) Lopolo/shutterstock

You can’t sleep

Insomnia is a common symptom of consuming too much coffee. Even if you believe that coffee has no effect on you, this delectable beverage might have a negative impact on your sleep cycle. According to the American Academy of Sleep Medicine, coffee has a half-life of 5 hours after consumption. This implies that it may take many more hours for the stimulant to be entirely eliminated from your system. This can increase the number of times you wake up during the night and reduce the amount of time you spend sleeping overall.

lightpoet/Stockholm Stock Photography

You’ve got the jitters

Coffee makes you feel more awake, but sometimes having too much of a good thing may be dangerous to your health. This is where the jitters start to appear. Caffeine stimulates the central nervous system, leading you to feel jittery and dizzy. Leave out the fourth cup and put an end to the shaking. Take a look at some common misconceptions about how coffee might influence your health. F8 studio is a recording facility that specializes on electronic music.

You get headaches

The caffeine in coffee helps you feel more awake, but occasionally too much of a good thing may be harmful. This is the point at when the jitters begin to manifest themselves. You will feel jittery because caffeine stimulates the central nervous system. Put an end to the tremors by skipping that fourth cup of coffee. Discover how coffee might harm your health by debunking these urban legends. F8 studio is a recording studio that specializes in electronic music. It was founded in 2008 by a group of musicians.

  • The American Academy of Sleep Medicine is a professional organization dedicated to the advancement of sleep medicine. “Sleep and Caffeine.”
  • Frontiers in Psychiatry, vol. 2, no. 1, p. 121. “The Safety of Ingested Caffeine: A Comprehensive Review,” published in the journal “The Journal of the American Medical Association.” The National Heart, Lung, and Blood Institute is a federally funded research organization. Palpitations in the chest
  • Stomach cramps. The International Foundation for Functional Gastrointestinal Disorders published an article titled “Effect of Coffee on Distal Colon Function.” “Common Causes of Chronic Diarrhea,” according to the National Institutes of Health.
  • Caffeine Research Journal
  • Journal of Caffeine Research “Caffeine Use Disorder: A Comprehensive Review and Research Agenda” is the title of the article.
  • The Journal of Headache and Pain, to name a couple. In “Caffeine in the Management of Patients with Headache,” the authors discuss the use of caffeine to treat headache patients. • NIMHD stands for the National Institute of Mental Health. “Anxiety Disorders,” National Institute on Aging, National Institute on Aging. “I had a good night’s rest.” Journal title: Proceedings of the National Academy of Sciences of the United States of America “Caffeine induces gastric acid secretion via signaling bitter taste in gastric parietal cells,” according to the study. Psychology as a medical specialty. Acute psychosocial stress and caffeine consumption: Effects on cardiovascular and neuroendocrine responses and their relationship to level of habitual caffeine use are the subjects of this study.

Date of Original Publication: October 18, 2019 Date of Original Publication: October 18, 2019

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What Happens When You’re Drinking Too Much Coffee — Eat This Not That

Because the majority of the globe continues to spend a significant amount of time at home, you may find yourself drinking more coffee than you ever have before—and throughout the day rather than just in the morning. Do you think there’s such a thing as too much coffee consumption? An online poll of over 800 coffee consumers in the United States conducted by Statista found that 29 percent of respondents consumed an average of two cups of coffee per day at home. Despite the fact that this appears to be an acceptable quantity, not everyone adheres to the two-cup restriction.

So, what does the caffeine content look like in a situation such as that?

It is estimated that the average person consumes about 850 mg of caffeine per day if they drink a “cup” of coffee that is more like the normal 12-ounce portion that is served at coffee shops.

The prolonged use of caffeine can result in a condition known as “caffeinism,” which can induce symptoms such as restlessness, anxiety, irritability, agitation, muscular tremors, sleeplessness, headaches, cardiovascular symptoms (such as tachycardia and arrhythmia), and gastrointestinal issues (e.g.

  • “Most individuals are typically safe with an average of 400 milligrams of caffeine, which is approximately the amount found in four cups of coffee.
  • So, what exactly are the indicators that you could be consuming a bit too much coffee, and how can you tell?
  • And, just in case you were curious, here’s a detailed explanation of what happens to your body after you quit drinking coffee.
  • There’s a strong probability it’s all due to the large quantity of caffeine you’re consuming through your coffee consumption.
  • “Caffeine consumption should be limited to no more than 200 mg per day.” “If you are experiencing any of these symptoms, it may be a good idea to reduce the amount of coffee you are consuming,” says the doctor.
  • Shutterstock Consider reevaluating your coffee consumption habits if you’ve suddenly begun drinking coffee later in the evening and are finding it difficult to get a good night’s sleep.
  • “Caffeine may remain in your system for up to three to five hours, so consuming a cup of coffee in the afternoon can still have an impact on your sleep when it’s time to retire for the night.

Getting enough quality sleep each night will help minimize the chance of developing diabetes, obesity, and high blood pressure, thus it is critical to obtain enough sleep each night “, in accordance with Bannan “If you still want to have a cup of coffee later in the day, it may be beneficial to switch to decaf once the afternoon comes around or to a herbal tea rather than regular.

  • Shutterstock You could be relying on coffee as your primary source of energy, but it could really be depleting your reserves.
  • Consequently, you will feel less energized throughout the day as a result of this cycle continuing to play out.
  • If you already suffer from acid reflux and are increasing your coffee consumption throughout the day, it’s possible that this is the cause of the increase in heartburn.
  • Shutterstock Shutterstock However, the several large cups of coffee that you’ve had throughout the day may be contributing to your increased stress levels rather than alleviating them altogether.
  • And, in addition to lowering your coffee intake, we offer a variety of additional simple strategies to reduce cortisol levels, allowing you to feel less stressed.
  • In accordance with a French study, caffeine has a diuretic effect, which might have an adverse effect on hydration levels.

If you’re drinking a lot of coffee to the point that you’re becoming dehydrated, be sure to replace some of those cups with water every now and again.

Ugly Side Effects of Drinking Too Much Coffee, According to Science — Eat This Not That

What is the limit of what is too much? We have the solution to your problem. The 16th of January, 2021 Shutterstock Let’s just get this over with. How much coffee is considered “too much coffee” in your opinion? On the contrary, you can consume a significant amount of coffee during the week. It is actually recommended that people limit their consumption of coffee to no more than 28 cups per week, which is approximately four cups per day. Drinking too much of it, on the other hand, can have negative consequences for one’s health, and especially for one’s lifespan.

  • For some, four cups of coffee may seem like an excessive amount of caffeine.
  • Because, according to the American Association of Retired Persons (AARP), a small amount of caffeine can lower one’s risk of death, consuming too much of it can have negative consequences for one’s health.
  • As well as our list of The 7 Healthiest Foods to Eat Right Now, which contains additional healthy recommendations.
  • As a result, if you drank more than four cups of coffee in a day, you would consume approximately 500 milligrams of caffeine.
  • According to the findings of the study, consuming more than 1,000 milligrams of caffeine per week was found to be a predictor of high anxiety levels.
  • According to science, the following are the Side Effects of Consuming Caffeine.
  • After conducting an evaluation of 197 high school students, researchers discovered that a mixed group of users with moderate caffeine intake exhibited early morning awakening and daytime sleepiness, as opposed to another group that consumed lower amounts of caffeine.

Here are seven healthy dietary changes that will improve your sleep quality.

However, a significant amount of caffeine would be required to accomplish this.

This is technically referred to as a caffeine overdose, which according to Healthline can result in headaches, jitters, difficulty sleeping, and, as previously stated, an increased heart rate.

Shutterstock When you’re feeling tired, it’s natural to reach for a cup of coffee (or other forms of caffeine).

Particularly if it contains additional sugars.

While it is common for caffeine to cause decreased energy levels as it wears off, it is best to time it for when you intend to sleep—instead of relying on more coffee to keep you awake—to prevent this from happening.

Now that you know how much coffee you can consume, stay away from the following beverages: According to science, your coffee habits are causing you to live shorter lives.

Kiersten Hickman is a young woman who lives in the United States. The primary focus of Kiersten Hickman’s work at Eat This, Not That! is food coverage, nutrition, and recipe development, with a secondary focus on recipe development. Readmore

Had Too Much Caffeine?

What a surprise. You were just attempting to get the wake-up job done when this happened. That euphoric boost that you had at 7 a.m. has now turned sour. Deep in the heart of the South. That espresso chaser, it turns out, was not such a brilliant idea after all. Suddenly, your eyelids start to twitch, and your heart starts to beat faster and faster. Your legs start to move in time to the cha-cha. Yes, it’s another overcaffeinated Monday for you! We understand what you’re saying. Overindulging in coffee is the only way to get through a typical day in the life.

How much is too much

Caffeine is metabolized differently by each individual. Because your genetics, age, weight, tolerance, and liver all have a part in how rapidly you process caffeine, it’s important to understand how you metabolize caffeine. According to Dr. Arun Sridhar, M.B.B.S., M.P.H., a cardiac electrophysiologist and expert in heart rhythm issues at UW Medicine Heart Institute, “While the reaction to caffeine varies, 400 mg or more is typically considered excessive for adults.” As a side note, it’s crucial to remember that the maximum tolerated amount of caffeine varies between adults and children.

As a result, we advise against excessive usage in children,” adds Sridhar.

However, a regular cup of brewed coffee has between 65 and 120 milligrams of caffeine, but a shot of espresso contains between 30 and 50 milligrams of caffeine.

Non-alcoholic beverages, such as snack bars, soda, bottled water, and energy drinks, as well as over-the-counter and prescription headache or PMS drugs, can all cause you to exceed your personal caffeine set point.

The symptoms of too much caffeine

Caffeine is a stimulant, which means it makes you feel more awake. It is for this reason that it might assist you in waking up in the morning. And it contributes significantly to your enjoyment of it. Beyond the restless leg, there are additional indicators of having had too much coffee. Symptoms might range from relatively moderate ones such as sweating and restlessness to more unpleasant ones such as nausea, diarrhea and anxiety. The good news is that the majority of these symptoms, as unpleasant as they may be, will not put your life in jeopardy.

The effects of caffeine on your heart

Caffeine raises your heart rate and temporarily lowers your blood pressure for a short period of time. And for the vast majority of individuals, this isn’t an issue. However, excessive caffeine can cause rapid and irregular heart rhythms in those who already have a heart issue (whether they are aware of it or not). This can result in abrupt cardiac arrest in those who already have a heart ailment. A strong caffeine intake will cause people to have a lot of missed beats, pounding, or a notably rapid heart rate.

Because dizziness might suggest that your body is not pumping enough blood to your brain, it is important to recognize it.

If you have a pre-existing arrhythmia or seizure problem, you should also address your caffeine intake with your doctor, as caffeine can exacerbate these illnesses.

Caffeine can contribute to anxiety

It is the influence of coffee on your neurological system that causes the jitters to occur. That jitteriness, on the other hand, might make you feel even more uncomfortable if you have a tendency to worry. For someone who has been primed in this way, jitteriness might be mistaken for anxiousness, says Sridhar. Any heart-related symptoms you have might exacerbate your feelings of worry. As Sridhar explains, “When people feel their heart beating hard, it tends raise their anxiety and might add to a sensation of panic.” When it comes to those who are prone to anxiety or panic episodes, coffee may increase such symptoms.

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What you can do to feel better

You’ll have to wait out your caffeine overdose in the same way that you would a hangover in order to get over it fully. And this might take anywhere from 4 to 6 hours, according to Sridhar, unless you’re one of the unlucky few who are caffeine-sensitive, in which case you could be waiting much longer. Sigh. Nonetheless, while you’re waiting, here are a few suggestions that may be of assistance: No more caffeinated beverages. Don’t drink any more caffeinated beverages today. Although it may seem like a no-brainer, be certain that you don’t unintentionally consume your normal mid-afternoon chocolate-covered snack bar by mistake.

  • Caffeine is a diuretic, which means that you’ll need to drink more water to compensate for the amount of water you’ll lose via urinating.
  • Electrolytes should be replenished.
  • A solution that replaces electrolytes such as Pedialyte is a good choice in this situation.
  • Walk about if you have a lot of pent-up energy to help you burn it off.
  • Deep breathing should be practiced.
  • Take a few calm, deep, purposeful breaths to bring your breathing back to normal and to lessen your stress levels.
  • Do not be too hard on yourself in this regard.
  • “Caffeine should be consumed in moderation.”

If you just drank way too much coffee, here’s what you should do

Coffee is, in many ways, the modern-day equivalent of the Holy Grail. This life-restoring elixir makes red-eye flights pleasant, restless nights go away, and, let’s be honest, it’s delicious with dessert. As a result, it’s acceptable that you would indulge in a bit too much drinking from time to time. (It’s very delicious! And I’m very exhausted!) In combination with other caffeine-containing foods such as dark chocolate, you might end up with a nasty case of the jitters, according to some experts.

  • Dr Jennifer Wider, a women’s health specialist, explains that caffeine works by stimulating the central nervous system, causing you to feel more awake and alert as a result.
  • Everything is OK if done in moderation.
  • According to the United States Department of Agriculture, people should restrict their caffeine intake to no more than 400mg per day.
  • According to the United States Department of Agriculture, one cup of morning mix coffee has around 92mg of caffeine.
  • However, if your preferred cup of coffee is a grande Vida coffee, only one of those has 310mg of caffeine on average.
  • I’m quite sure I just drank a ridiculous amount of coffee.
  • The bad news is that According to certified dietitian Beth Warren, creator of Beth Warren Nutrition and author ofLiving a Real Life With Real Food, it can take up to nine and a half hours for caffeine levels in your system to even decline by half.
  • First and foremost, begin drinking water.
  • Another approach, according to Warren, is to engage in light activity to assist your body in metabolizing the caffeine more quickly.
  • Caffeine depletes your body’s potassium and magnesium stores, resulting in the tremors and jitters associated with a caffeine overdose.
  • What can I do to determine if I’m genuinely suffering from a coffee overdose?

Wider advises that if you encounter any of the following overdose symptoms, you should seek medical attention immediately:

  • Breathing difficulties
  • Confusion
  • Chest discomfort
  • Vomiting
  • An extremely rapid, irregular heartbeat
  • Convulsions
  • And other symptoms

According to Warren, in these more extreme circumstances, doctors might use treatments such as activated charcoal or laxatives to try to pull the caffeine out of the system. However, they should only be used under the supervision of a medical professional. Finally, it’s important to remember that the best course of action is to limit your caffeine intake in the first place. However, if you do make a mistake, staying hydrated, exercising, and eating a banana may be of assistance. This post was first published using the following image credit: iStock.

Yes, There Is Such a Thing as Drinking Too Much Coffee

  • Many cyclists rely on coffee to get them through the morning, but too much caffeine has been found to elevate blood pressure and may also cause symptoms such as headaches, shakiness, or an irregular heartbeat, among other things. According to a study published in the American Journal of Clinical Nutrition in 2019, the maximum amount of coffee that should be consumed per day is six cups. However, having a cup of coffee is preferable to not drinking it
  • According to the same study, nondrinkers had an 11 percent greater risk of cardiovascular disease.

Coffee serves as a source of energy for billions of individuals all over the world as they go about their everyday lives. Endurance athletes rely on coffee to get them going in the morning (in more ways than one). For many people, living without at least one daily cup of coffee is simply not an option. However, like with any wonderful thing, too much coffee—and especially, too much caffeine—can be detrimental. Too much coffee can induce high blood pressure, which is a risk factor for heart disease.

  • As a result of study undertaken by the University of South Australia in 2019, we now know the maximum amount of coffee that is safe when it comes to reducing your risk of heart disease.
  • Researches analyzed data from the United Kingdom Biobank, which included more than 347,000 people ranging in age from 1937 to 1973.
  • People who drink more than six cups of coffee per day had a 22 percent higher risk of cardiovascular disease than those who drink one to two cups per day, and the researchers determined that six cups of coffee per day was the maximum amount that could be consumed without causing harm.
  • Interestingly, the amount of coffee that was considered safe to consume did not appear to have anything to do with whether or not you possessed the genes for rapid coffee metabolism.
  • The researchers found that people should limit their coffee consumption to no more than six cups per day in order to maintain a healthy heart and blood pressure.
  • This material has been imported from another source.
  • The findings of the study also show that drinking some coffee may have heart-protective benefits, since nondrinkers had an 11 percent greater risk of cardiovascular disease when compared to those who drank 1 to 2 cups daily.

As a result, according to the results of a 2017 research published in the European Journal of Nutrition, low to moderate coffee consumption per day was associated with a decreased risk of heart attack, while those who consumed the most per day had the greatest risk.

4 Great Coffee Blends

Mixture of Major Dickason’s Peet’s Coffee & Tea amazon.com $9.98 Blonde Roast Veranda Blend is a blend of roasted beets and spices. Starbucksamazon.com $28.50 Organic Coffee from Holler Mountain Stumptown Coffee Company Roastersamazon.com Sumatra coffee that has been decaffeinated Allegro Coffeeamazon.com According to those experts, a type of antioxidant found in coffee called chlorogenic acid may assist enhance blood vessel function and prevent the formation of plaque accumulation, which can lead to artery occlusion and death.

  1. However, excessive coffee can not only increase the likelihood of developing high blood pressure, but it can also cause arterial rigidity, both of which increase the likelihood of developing heart disease.
  2. “Every day throughout the world, an estimated three billion cups of coffee are consumed,” Hyppönen stated in a news statement.
  3. In this case, as in many others, moderation is essential; overindulge and your health may suffer as a result.” Selene Yeager is a model and actress.
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  5. She has won numerous awards for her writing and has competed in several triathlons.
  6. You may be able to discover further information on this and other related items at the website piano.io.

How Much Caffeine is Too Much?

The use of coffee appears to be beneficial whether one is struggling to get out of bed on a rainy morning or attempting to withstand the world’s longest staff meeting. Is your dependency on caffeine, on the other hand, beneficial or harmful? Cleveland Clinic is a not-for-profit academic medical facility located in Cleveland, Ohio. Advertising on our website contributes to the success of our mission. We do not recommend or promote any items or services that are not provided by the Cleveland Clinic.

According to Czerwony, “caffeine is a stimulant that has a variety of effects on the human body.” “Can you tell me how much caffeine is too much?” To make a decision, you must consider the risks and advantages.”

How much caffeine should you have in a day?

That is dependent on your personality. Caffeine is not suitable for all people. Caffeine should be avoided by several persons, including:

  • Those with heart disease or high blood pressure
  • Children
  • Those using anti-anxiety drugs
  • Women who are pregnant or breast-feeding
  • People with anxiety disorders

Caffeine is safe to use in moderation if you are otherwise healthy. Listed below are the parameters.

  • Caffeine should not be consumed in excess of 400 milligrams (mg) per day by otherwise healthy persons. That’s the equivalent to around four 8-ounce cups of brewed coffee or ten 12-ounce cans of cola. A daily caffeine consumption of less than 100 mg (equivalent to one 8-ounce cup of coffee or about two cans of cola) is recommended for teenagers.

Side effects of too much caffeine

Caffeine, on the other hand, is not without its benefits. Caffeine, as a stimulant, can make you feel more energized, increase your physical and mental performance, and even help you lose weight. However, more does not necessarily equate to better. Overconsumption of caffeine can result in a variety of unpleasant and even dangerous adverse effects, including:


If you’ve had a bad night’s sleep, you might grab for a cup of coffee to assist you get through the day the following day. The problem is that consuming too much of it might cause insomnia the next night. “It turns into a vicious loop,” Czerwony explains. Prevent drinking caffeinated beverages in the afternoon and evening to avoid disturbing your precious sleep.


“Caffeine stimulates the activity of your central nervous system,” adds Czerwony. “This can lead to feelings of anxiety, jitteriness, and irritability.” Caffeine use should be limited to help keep those negative effects under control. However, if you have been diagnosed with an anxiety condition, you should avoid coffee at all costs.

Heart palpitations and racing heart

A large number of people suffer from heart palpitations and anxiety at the same time. Caffeine can exacerbate the symptoms of both conditions. Heart palpitations are characterized by the sensation that the heart is speeding, fluttering, or skipping a beat. They can be frightening, even if they aren’t necessarily harmful, which is another excellent reason to forego that second cappuccino.


Caffeine has diuretic properties, which means it causes you to pee. And if you’re drinking coffee all day, you’re probably not getting enough water in your system. If you want to prevent being dehydrated, drink lots of water along with any caffeinated beverages you may be drinking.

High blood pressure

According to some study, caffeine can induce minor increases in heart rate and blood pressure in certain people. People who already have high blood pressure or other cardiac issues may experience complications as a result of this rise.

Heartburn and stomach upset

“Caffeine has been shown to increase the formation of stomach acid,” Czerwony explains. As a consequence, heartburn sensations become unbearable. Coffee’s acidity can contribute to the problem, but it is not the only source of acidity. Caffeine, which may be found in soda and other beverages, can also cause acid reflux. “An excessive amount of caffeine might induce gastrointestinal difficulties,” she continues.

Caffeine toxicity

Caffeine at really high concentrations can be hazardous. That’s one of the reasons Czerwony advises against using energy drinks and energy shots, which can contain far more caffeine than a cup of strong coffee. Caffeine can be found in certain weight reduction products, and an overdose can result in significant — and perhaps fatal — cardiac rhythm disorders.

Caffeine withdrawal

If you’re used to consuming large amounts of caffeine, your body may experience withdrawal symptoms if you suddenly quit. If you skip your morning cup of coffee, you’ll almost certainly be rewarded with a splitting headache.

Caffeine users may also feel rebound weariness after using caffeine. Caffeine is a stimulant that helps you stay alert in the short term. When the caffeine wears off, you may experience a wave of fatigue that is even greater than what you were experiencing before to drinking the coffee.

How to cut back on caffeine without withdrawal headaches

Some people are more sensitive to caffeine than others, and this is due to genetics. When using less than 400 mg per day and without experiencing any negative side effects, you may not need to give up your morning latte or afternoon soda habit, according to the researchers. If you, on the other hand, desire that your cold brew habit had less sway over you, The first step is to become aware of how much caffeine you’re taking. There are several dietary and non-food sources that contain the stimulant, including:

  • Energy drinks, weight reduction supplements, over-the-counter drugs, including certain pain killers, and tobacco are all considered to be caloric sources.

Once you’ve determined where your caffeine is coming from, Czerwony recommends devising a strategy for reducing your intake. Reduce your caffeine intake gradually over several weeks to prevent experiencing a headache or other withdrawal symptoms. Czerwony advises substituting half-decaf coffee for your typical cup of joe. Alternatively, try substituting fizzy water or herbal tea with every other can of soda. With a little trial and error, you’ll be able to discover a balance that keeps you awake and invigorated while still avoiding the negative side effects.

“An excess of a good thing is still an excess of a good thing.”

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