Calcium Citrate is a highly absorbable source of calcium and helps build bone mass in young adults and helps prevent bone loss in later years.* A healthful diet with adequate calcium is essential in achieving peak bone mass in children and young adults and maintaining bone health during adulthood. Individuals who do not store enough calcium throughout their lives have an increased risk for developing osteoporosis.* Unconditionally guaranteed for purity, freshness and label potency. No added Sugar, Yeast, Preservatives, Artificial Flavors or Colors. 21st Century Vitamins and Supplements are manufactured in a cGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.