O.S.I. uses only the highest quality ingredients. One example is O.S.I.'s protein.
Protein is the single most important ingredient in fish foods.
O.S.I. uses high quality marine fish meals to supply dietary protein. Other brands often substitute soybean or potato meals which may be deficient in some important amino acids. This means that the enzymatic digestion processes can proceed faster and more completely to supply the maximum amount of nutrients. Nutrients are absorbed faster and more completely. Stabilized vitamin C is more stable than other types of vitamin C which are destroyed during manufacturing processes and storage.