Matcha is a powder made of steamed and dried green tea leaves. It has been used in Japanese tea ceremonies for centuries. Matcha contains more antioxidants than superfoods like blueberries or spinach. The chlorophyll and caffeine boost energy levels, It also contains an amino acid called L-theanine, which relaxes you without making you sleepy. According to a study published by the Journal of Medicinal Food, matcha can protect your liver and kidneys. There are also studies from the American Journal of Clinical Nutrition that point to its connection to weight loss. Cynthia Pasquella, Los Angeles nutritionist Avoid matcha with too many added sugars to retain all its nourishing benefits.