Green tea is famous for its claimed bioactive compounds that may have various protective effects on the brain. It contains the amino acid L-theanine, which can work synergistically with caffeine to improve brain function. Also, Some studies claimed to have been shown to boost the metabolic rate and increase fat burning.
Green tea has also been shown to lower total and LDL cholesterol and protect the LDL particles from oxidation. Some observational studies claim that green tea drinkers have a lower risk of cardiovascular disease.