Your Diet and Your Health: What Your Body Needs
"Food is essential. People take it for granted, but we need nutrients," says Anne Wolf, RD, a researcher at the University of Virginia School of Medicine. Wolf cites as one example the old days when sailors crossed the ocean for months without proper nutrition. As a result, they ended up with scurvy because of a lack of vitamin C from citrus fruits. Vitamin C and other vitamins and minerals are necessary to keep all the different parts of the body healthy and functioning — otherwise, we get sick.
Every little thing that you do happens because of the nutrients that you give your body. Says Wolf, "Food gives us the fuel to think and the energy to move our muscles. The micronutrients, the vitamins, the minerals are there so that our bodies can function. You need food not just to sustain health, but to feel better."
And the only way the body will get the many nutrients needed to stay healthy and function is by eating a wide variety of healthy foods.