Nutritional supplements provide nutrients that are lacking in a person’s diet. Nutritional supplements consist of a diverse group of products. Vitamins, minerals and herbs combined to deliver disease-fighting potential. Flavonoids, soy isoflavones, and carotenoids are phytochemicals, or natural compounds found in fruits and vegetables that are believed to lower the risk of disease and other problematic conditions. These nutrients are essential not only for normal health maintenance, but also for long-term health improvement.