348-672 (HNFE-358NP) You may already know that muscles are made up of protein, but many other important parts of the human body need protein, too. Thatâ€™s why protein is so important for normal growth and development. This publication was partially funded by USDAâ€™s Supplemental Nutrition Assistance Program (SNAP). The Supplemental Nutrition Assistance Program provides nutrition assistance to people with low incomes. It can help you buy nutritious foods for a better diet. To find out more, contact your local county or city Department of Social Services (phone listed under city/county government). For help finding a local number, call toll-free: 1-800-552-3431 (M-F 8:15-5:00, except holidays). By calling your local DSS office, you can get other useful information about services. In accordance with Federal law and U.S. Department of Agriculture (USDA) policy, this institution is prohibited from discriminating on the basis of race, color, national origin, sex, religious creed, age, disability, or political beliefs.