How Serious Are Green Tea Side Effects?

Daytime talk shows and medical periodicals are advertising tea as an excellent supplement for reducing weight. Because of the raising interest of tea, many people are questioning the safety aspects of the supplement. Many of the press promoting the benefits of tea are usually not discussing enough of the unwanted side effects. Thoroughly knowing the potential unwanted effects is essential in order to take benefits with no damaging effects.

Similar to many supplements or medicines, the amount plays a vital role when it comes to adverse effects. If consumed without care, even the most organic supplement results in unanticipated reactions. Identical reasoning applies here. So what is the right amount of tea?


Two active substances of tea are catechin and caffeine. These two assist with utilizing fat as the resource to generate heat which is known as thermogenesis. This procedure in return speeds up metabolism. Boosted metabolic function burns body fat quicker within the body.

A lot of analyses on caffeine and its impact on human body have been conducted. Numerous experts are saying normally above 500mg of caffeine in a day is too much. It can be harmful causing adverse reactions like insomnia, nervousness, restlessness, irritability, stomach upset, fast heartbeat and muscle tremors. Researchers furthermore agree that sensitivity to caffeine ranges by an individual, however 300mg or less is regarded a risk-free amount.

Single cup of tea possesses around 20mg of caffeine. It is a small amount. Single cup of coffee possesses around 100mg of caffeine. When tea is the only caffeinated drink consumed then it should not be a problem. However when additional caffeinated drinks are consumed throughout the day, then it is important to look at the total daily dose of caffeine.

Industry experts carried out lab tests concerning dosage. A daily amount of 800mg of EGCG was successfully tested without unintended effects. One cup of green tea has close to 100mg of EGCG, which is 8 cups of green tea. Many laboratory experiments claim more EGCG equals to more fat burning, yet some health specialists advise that large amount of one compound from herbal products could be a problem. It is challenging to come to a definite conclusion based on clinical reports, still a good number of experts are saying 300mg of EGCG is an ideal dose to take in a day. There have been successful laboratory tests using the dosage of 300mg against cancer cells and weight reduction.

Due to the increasing interest in green tea, even more lab tests are going to be conducted. As for now, 300mg appears to be a good amount for both caffeine and EGCG.