For centuries now, the benefits of green tea diets have been the subject of countless writings and scientific investigations. More than four thousand years ago, green tea diet has become a staple beverage for most Asians because of its countless health and medicinal benefits. It is said that the Chinese Emperor Shen Nung was the first one to have discovered green tea diet. Emperor Shen Nung was reported to have been boiling water when some leaves of a nearby plant fell into his pot. The leaves actually came from Camellia sinensis, the herb from which green tea diet is extracted.