Globally, seafood provides more protein than cattle, sheep, or poultry. Fish also contain a wide variety of vitamins and minerals including vitamins A and D, phosphorus, magnesium, and selenium. Research shows that omega-3 fatty acids, found abundantly in seafood, have health benefits, such as improved infant brain development and protection against heart disease and stroke. Most adults in the US consume much less omega-3 fatty acids than nutritionists recommend.