Some people focus on diet alone in their efforts to lose or maintain their weight. Others look to a workout plan. Studies suggest, however, that a three-pronged approach that includes nutritional supplements, a healthy diet and regular exercise can help you burn fat, build muscle, and curb your appetite more quickly and efficiently than exercise or diet alone.

Nutritional supplements have come a long way. They come in many different forms (vitamin capsules, energy bars, drinks, shakes) and are formulated to provide support for specific fitness goals, such as burning fat, building muscle, providing a full range of essential nutrients, replacing meals and much more. When choosing nutritional supplements, consider your personal fitness goals -- and look for the products designed to meet those goals.