Solgar's Earth Source Multi-Nutrient Tablets are an advanced formula providing vitamin and mineral complexes with antioxidants, whole food concentrates, digestive enzymes and full potency herbs. The human body requires a wide variety of food substances, termed 'nutrients', which are the building materials for new and repaired tissues. Each nutrient has specific functions although in many instances, several must work together to help the body perform the necessary task. Among the nutrients that work together are vitamins and minerals which are constituents of the body's enzyme systems, the catalysts necessary for the maintenance of life. To ensure optimum nutrient intake, for many individuals it is important to consider supplementing the daily diet with a multinutrient formula.