When we watch calories or significantly cut back on the amounts of foods we are eating, we may be cutting back on some important vitamins and minerals. To supplement any shortcomings your diet program might bring on, be sure to take a good multi-vitamin every single day. While vitamins don't actually replace high-nutrient foods, they are a good way to ensure your body gets the nutrients it may be missing out on. You can find more information at http://nutrition.about.com.