Investigating Green Tea Side Effects

By Jeffrey Singer


Talk shows and medical periodicals are promoting green tea as a good supplement for losing weight. Because of the raising interest of tea, many are concerned with the safety aspects of the supplement. Most of the press promoting the advantages of tea is usually not discussing enough of the side effects. Thoroughly understanding the possible unwanted effects is important to be able to take health benefits without any unwanted consequences.

Like many dietary supplements or prescription drugs, dosage has a vital role with regards to unwanted effects. If consumed without careful attention, even the most natural supplement allows unexpected effects. Identical reasoning applies here. So what is the right amount of tea?

Two active components of tea are caffeine and catechin. Both together help out with utilizing fat as the source to generate heat which is called thermogenesis. This process in return increases metabolism. Enhanced metabolism burns fat more quickly in the body.

There have been a number of scientific studies on caffeine and how it influences human body. Numerous professionals are stating commonly greater than 500mg of caffeine per day is too much. It could be harmful causing adverse reactions such as insomnia, nervousness, restlessness, irritability, stomach upset, fast heartbeat and muscle tremors. Industry experts furthermore acknowledge that responsiveness to caffeine varies by an individual, but 300mg or less is considered to be a healthy amount.

A single cup of tea carries approximately 20mg of caffeine. Compare to other caffeine containing drinks, it is a small amount. A single cup of coffee carries approximately 100mg of caffeine. When tea is the only caffeinated drink taken then it should not be a concern. However if other caffeinated beverages are consumed throughout the day, then it is critical to look at the overall daily amount of caffeine.

There also have been some laboratory tests related to the amount of tea. A daily dose of 800mg of EGCG has been successfully tested with no side effects. A single cup of tea comes with around 100mg of EGCG, so that is 8 cups of green tea. A lot of clinical tests claim more EGCG means more fat reduction, however some experts advise that an excessive amount of isolated element from herbal products may be problematic. It is challenging to make a definite conclusion based on clinical studies, but numerous experts are saying 300mg of EGCG is an ideal dosage to take daily. There are successful laboratory experiments using the dosage of 300mg fighting cancer cells and weight loss.

Due to the raising popularity of green tea, additional tests will likely be done. For now, 300mg appears to be a good dosage for both EGCG and caffeine.




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