For example, eating beans and cornmeal or rice and legumes together can provide a low-fat source of protein. Proteins are essential to the making of muscle, normal immune response, and enzyme actions in the body. Every cell in the body requires protein for normal function. FATS, or lipids, are vital nutrients. Every cell in the body is surrounded by a cell wall made of lipids.
Lipids also maintain the structure and support of our organs.
Consequently, eating some dietary fat each day is essential to health. Fat is obtained from many food sources, including meats, dairy products, and plant products, such as nuts, seeds, coconut, and avocado. It is still unknown what the appropriate intake levels may be for vitamins and minerals to optimize health and prevent disease. Eating a balanced diet and a variety of foods provides the best chance of satisfying the body's vitamin and mineral needs. Without it the human body cannot survive for more than a few days.