How much caffeine is too much? – Caffeine is a compound that is present in coffee , tea, cola, guarana, mate, etc.

Caffeine is used to enhance mental vigilance most often but has many other applications. Caffeine (such as aspirin and acetaminophen) is used orally or rectally together with painkillers and a chemical called ergotamine for migraine headaches. Even for the prevention and treatment of headaches following the epidural anesthesia is used with painkilling agents.


Some people use caffeine orally to treat asthma, gallbladder disease, ADHD, and many other disorders, but there are no clear clinical data to support any of these applications.

Caffeine is one of the athletes’ most widely used stimulants. The National Collegiate Athletic Association ( NCAA) permits the ingestion of caffeine within limits. Concentrations of urine over 15 mcg / mL are prohibited. It takes most people approximately 8 portions of coffee to achieve the urine level with 100 mg/cup.

Some products with caffeine are marketed in highly oriented or pure forms. These goods are an issue of wellbeing. Doses that are much too large by accident can easily be used by people. It could lead to death. The Administration of Food and Drugs (FDA) considers that these products are not permitted to be marketed in bulk to consumers.

In foods, the ingredients for soft drinks, energy beverages and other drinks are caffeinated.


It is highly not recommended to use caffeine in people with speech, singers and other professionals. This advice was, however, only based on hearsay until recently. Research now appears to show that caffeine can damage voice efficiency. However, more research is required to validate these early results.



–> Athletic Performance:

Success in athletics. Caffeine tends to improve physical strength and stamina and might postpone workout fatigue. It may also reduce the stress feel and enhance the efficiency of cycling, biking, football and golfing sports. However, during fast, high intensity exercise, such as sprinting and lifting, caffeine tends to not enhance results. The caffeine dosage does not seem to have any effect on athletic results, but it may be timed. In the morning exercise caffeine could work better than in the night.  kCaffeine may also contribute to tolerance if taken for up to 4 weeks. This could reduce or remove the effects of caffeine that boost efficiency. Caffeine effects can vary due to genetic differences among people.

–> Diabetes:

The risk of developing Type 2 diabetes is associated with consuming caffeine-containing drinks. The more caffeine is used, the less danger it occurs. Although caffeine can help prevent type 2 diabetes, however some research shows it does not treat type 2 diabetes effectively. Caffeine impact evidence is inconsistent in people with type 1 diabetes. Some research is useful, whereas others are not.

–> Mind Alertness:

Research shows that drinking caffeine drinks all day long keeps the mind alert and can boost response times. It is safer to use the combination of caffeine with glucose as an “energy drink” than either caffeine or glucose alone.

–> Solution for Mental Inabilities in Women:

Decrease the ability to remember and think normally occur with age. The risk of psychological decay is decreased compared with the risk for postmenopausal women who consume more than 175-371 mg caffeine per day. Some research suggests that the slow mental deterioration associated with the consumption of coffee but not caffeinated tea. However, there was no distinction between caffeinated products in other studies.


In people with asthma, caffeine tends to improve the function of airways for up to 4 hours.

Some other uses, which are important too:

1) Migraines:

Caffeine is effective in the treatment of Migraines by mouth and pain relievers like aspirin and acetaminophen. Caffeine is an FDA approved medication used to treat migraine headaches with pain relievers.

2)Headache after surgery:

After every single surgery of headache,  Caffeine is effective either by mouth or intravenously to avoid headaches after surgery. Caffeine is an FDA approved product for this application in people who eat products containing caffeine on a regular basis.


Headache stress. Pain. Caffeine is useful for the treatment of stress headaches by mouth in conjunction with pain relievers.

4) Treating “Neonatal apnea”

Breathing slows, with low cardiovascular rate and low levels of oxygen for newborns. “Neonatal apnea” describes a disorder in which children have breathing delays which last a minimum of 15 seconds or which cause a severe decrease in their heart rate. In very premature babies, this disorder is normal. In very premature infants with this condition, caffeine given by mouth or intravenously (by IV) can improve breathing. The number of apnea episodes tends to be decreased by at least half over 7-10 days. The prescribed medicine for the prevention of neonatal apnea in premature infants is caffeine citrate. However, caffeine does not seem to stop the premature growth of this condition.

Side Effects:

When taken orally: Caffeine in most healthy adults with doses of up to 400 mg per day is LIKELY SAFE. This quantity of caffeine is equivalent to about 4 cups of caffeine.

When taken orally over a long period or at large doses (> 400 mg daily), caffeine is Probably Unhealthy. Caffeine may cause insomnia, nervousness and restlessness, pain to the stomach, stomach nausea and vomiting. In patients with acquired immunodeficiency syndrome ( AIDS), caffeine can worsen sleep disorders. A larger dose of headache, anxiety, chaos, thorn and ringing in the ears could be responsible.

Caffeine can cause irregular heartbeats and even death if ingested by the mouth in very high doses of coffee. The risk of being used in doses that are too high in very concentrated or pure caffeine products has been high. Accessible should be avoided.


In General: One cup of coffee comes with caffeine from 95 to 200 mg. A portion of 8 units of black Tea supplies caffeine with 40-120 mg. Eight units of green tea contain 15-60 mg of caffeine. Soft drinks, such as cola, contain caffeine of 20–80 mg per 12 ounce. Typical sports or energy drinks provide 48-300 mg per serving of caffeine.

For Headaches: Caffeine is being used from 100-250 mg/daily. Caffeine, aspirin, ergotamine were all used together.

To increase alertness: Doses of 100 to 600 mg of caffeine is used daily for mental alertness. Caffeine and taurine, glucose, and L-theanine have also been taken together.

For asthma: Caffeine can be taken at 9 mg/kg doses. The athletic performance gain was achieved: 2-10 mg/kg. Note that doses above 800 mg/day will result in urine above 15 mcg / mL approved by the National Collegiate Athletic Association.

For memory: caffeine was used in 65-200 mg.

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