A dietary supplement, also known as food supplement or nutritional supplement, is a preparation intended to supplement the diet and provide nutrients, such as vitamins, minerals, fiber, fatty acids, or amino acids, that may be missing or may not be consumed in sufficient quantities in a person's diet. Vitamins & Food Supplements Retail stores in Columbia offer the best prices on thousands of vitamins, supplements, health foods, diet products, sports nutrition and more. Vitamins & Food Supplements Retail stores in Columbia offer a variety of top brands usually at discounted price.