The calcium provided by this product is in the citrate form, which is considered one of the most easily absorbable calcium compounds, due in part to its high solubility compared to other calcium compounds. Vitamin D is necessary for normal bone growth and development in children and is present in the natural form D3 (cholecalciferol), which is the most easily absorbed. Insufficient calcium intake among young women and adults is especially concerning because achieving optimal bone density before age 30 helps maintain strong bones throughout old age. Calcium contributes to reducing bone demineralization in postmenopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures. This benefit is achieved with a daily dose of at least 1,200 mg in women 50 years of age and older. Calcium supplements provide a practical way to increase calcium intake and have been shown to help slow the inevitable bone loss that occurs with aging. Calcium contributes to normal blood clotting, energy-yielding metabolism, and normal cell division and differentiation. It also contributes to the normal function of neurotransmission, digestive enzymes, and muscles. Vitamin D is a fat-soluble vitamin that can be ingested with food or produced by the body as a result of sunlight hitting our skin. People with little exposure to sunlight often choose to supplement their diet with extra vitamin D. This vitamin contributes to the normal absorption and utilization of calcium and phosphorus. It also contributes to the maintenance of normal blood calcium levels and is important for a healthy immune system and normal muscle function. This product is suitable for: • Elderly people, especially those with compromised intake of these nutrients. • Anyone with low exposure to sunlight. Directions for Use: Take 3 tablets daily with food. Do not exceed the expressly recommended daily dose. Suitable for vegetarians and vegans and free of lactose and gelatin.