Sunday, December 2, 2012

What Are Green Tea Extract Side Effects?

By Kenneth Palmer


TV programs and medical journals are promoting tea as a reliable supplement for weight loss. With the raising curiosity of tea, many people are wondering the safety aspects of the supplement. Most of the press promoting the advantages of tea is usually not identifying enough of the unwanted side effects. Thoroughly knowing the possible negative effects is vital in order to take health benefits without having unwanted effects.

Similar to many supplements or prescription drugs, dosage plays a significant role in terms of side effects. If consumed without care, even the most herbal supplement will cause unanticipated reactions. Identical reasoning can be applied here. So what is the proper amount of tea?

A couple of active contents of tea are catechin and caffeine. These two assist with taking body fat as the supply to make energy which is known as thermogenesis. This procedure in return improves metabolic rate. Enhanced metabolic rate burns body fat much faster in the human body.

There have been countless scientific studies on caffeine and how it impacts human body. Many nutritionists are saying in general more than 500mg of caffeine in a day is too much. It can be unhealthy causing side effects like insomnia, nervousness, restlessness, irritability, stomach upset, fast heartbeat and muscle tremors. Health specialists also agree that level of sensitivity to caffeine differs by an individual, however 300mg or less is regarded a safe amount.

A single cup of tea carries about 20mg of caffeine. Compare to coffee, it is a small amount. A single cup of coffee carries about 100mg of caffeine. If tea is the only caffeinated drink taken then it should not be a problem. But if other caffeinated beverages are consumed during the day, then it is important to consider the combined daily dose of caffeine.

There also have been a number of laboratory tests about dosage. A daily amount of 800mg of EGCG was successfully tested without any negative effects. A single cup of tea possesses roughly 100mg of EGCG, which is 8 cups of tea. Most lab evaluations suggest more EGCG implies greater fat reduction, yet some medical experts advise that large quantity of isolated compound from herbs may be a problem. It is hard to make an absolute conclusion based on laboratory research, yet numerous medical experts are saying 300mg of EGCG is the best dosage to consume in a day. There are actually successful lab experiments with the dosage of 300mg versus cancer cells and weight reduction.

Because of the growing popularity of green tea, much more tests are going to be conducted. In the meantime, 300mg seems to be an ideal amount for both caffeine and EGCG.




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