Green tea extract side effects have been known to include liver toxicity and liver damage. Know the facts before taking green tea pills..Tea drinking accounts for a high proportion of aluminum in the humant. The levels are safe, but there has been some concern that aluminum traces may beociated with Alzheimer’s disease..How to Drink Green Tea Without the Side Effects. Though green tea has some health benefits, it can also cause side effects such as nervousness and upset stomach..Green tea is a type of tea that is made from Camellia sinensis leaves that have not undergone the same withering and oxidation process used to make oolong teas and black teas..
Prostate cancer One study found that men drinking green tea had a lower risk of developing prostate cancer, which is the most common cancer in men. Colorectal cancer A study of , Chinese women found that green tea drinkers had a lower risk of colorectal cancer..