Introduction to Fish Proteins

Seafood is reliably regarded as the most preferred and affordable animal protein source in their diets for a large number of populations around the world. Marine-derived foods have muscle proteins that are high in nutrients, easily absorbed, and have a well-balanced amino acid composition. It has been demonstrated that fish is essential to a healthy diet, helps prevent undernutrition and micronutrient deficiencies in developing nations, and promotes food security. In addition to being a significant source of highly beneficial dietary omega-3 fatty acids, aquatic foods also offer all vital amino acids, superior proteins, vitamins, and minerals. Most seafood proteins are more than 90% digestible, and the muscle proteins of seafood are rich in all essential amino acids. This chapter elaborates on the significance of seafood in the human diet and the classification of fish proteins and fish protein-based products.