As a result of reduced renal function in the old protein intake for older adults should match or slightly exceed the minimum daily requirement for healthy young adults. Furthermore, protein sources should include foods that are easily digested and rich in essential amino acids. Examples include fish, soft cheese, lean meat, fowl, and legumes. Many high-protein food are valuable sources of trace minerals and iron, especially when caloric requirement are low. As a result, protein intake in excess of the RDA is desirable for older people.