Healthy diet foods should ideally include all of the 22 essential minerals and vitamins required by the body for good metabolism and to control ones weight. Some of these vitamins and minerals include Vitamins B2, B5, B6, magnesium, zinc, chromium etc. Weight loss diet foods are those foods that should cover all the food groups required for the individual to follow a balanced diet and include the healthiest proteins via foods like lean beef, fish, chicken, healthiest unrefined vegetable oils as well as healthiest carbohydrates such as fruits, whole grains, vegetables and beans.