Any kind of edible substance that is rich in fatty acids, fiber, antioxidants, vitamins, and minerals is considered to be a superfood. For example, acai is full of amino acids and fatty acids for a healthy heart. Matcha has all sorts of detoxifying antioxidants like EGCg, L-Theanine, and chlorophyll. Cacao is another powerful antioxidant with copper, iron, potassium, manganese, and magnesium.