What Causes Green Tea Side Effects?

By Anna Burns


Health television programs and magazines are promoting green tea as a beneficial supplement for weight reduction. With the increasing interest of tea, many people are wondering the safety aspects of the supplement. Many of the media promoting the benefits of tea are not explaining enough of the unwanted effects. Thoroughly knowing the potential unwanted effects is important to be able to take health rewards with no harmful effects.

Similar to many supplements or prescription drugs, dosage has an important role with regards to negative effects. If taken without care, even the most healthy supplement may cause unanticipated effects. Similar reasoning can be applied here. Just what exactly is the proper amount of tea?

The most active substances of tea are catechin and caffeine. Both assist with making use of fat as the supply to make energy which is called thermogenesis. This process in return raises metabolism. Accelerated metabolism burns fat quicker in the human body.

There has been a lot of analysis on caffeine and how it influences human body. A lot of health specialists are claiming usually beyond 500mg of caffeine per day is too much. It can be unsafe resulting in unwanted effects such as insomnia, nervousness, restlessness, irritability, stomach upset, fast heartbeat and muscle tremors. Experts also acknowledge that level of responsiveness to caffeine varies by an individual, but 300mg or less is considered a healthy dosage.

Within a cup of tea, there are around 20mg of caffeine. Compare to other caffeine containing drinks, it is not much. Within a cup of coffee there are around 100mg of caffeine. If tea is the only caffeinated beverage taken then it should not be an issue. However if additional caffeinated beverages are consumed throughout the day, then it is critical to look at the overall daily amount of caffeine.

There also have been a few lab tests regarding the amount of tea. A daily dose of 800mg of EGCG has been tested successfully and with no unwanted side effects. A cup of tea includes approximately 100mg of EGCG, which is 8 cups of green tea. A lot of clinical experiments suggest more EGCG means more fat burning, but some professionals warn that too much of one compound from herbs may be problematic. It is difficult to make a definite conclusion based on clinical studies, yet a lot of health experts are stating 300mg of EGCG is a safe dosage to take on a daily basis. There are actually reliable laboratory outcomes using the dose of 300mg against cancer cells and weight loss.

With the growing popularity of green tea, much more laboratory tests are going to be done. For the time being, 300mg seems to be a good dosage for both caffeine and EGCG.




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