One of the many things you can do to protect your health is to eat a well-balanced diet. Many medical conditions such as premature heart disease and diabetes can be prevented simply by eating healthy and being physically active. In general, healthy foods are very high in vitamins, minerals, and other nutrients that help maintain your body's well-being and retain energy. You can find all of these in various foods from the five major food groups and include them in your daily diet in endless ways.