Nature's Sunshine Food Enzymes (120 caps). Food Enzymes [Digestive, Immune] is a key product for the digestive system. Foods require processing (digestion), and enzymes are able to break down food compounds for absorption into the bloodstream. A number of different enzymes are needed to deal with differing food compounds. Some of these are produced by the body, some are found in foods. However, many processed foods lack the enzymes needed for proper digestion.