This 3-in-1 supplement contains Bone-Active™ which is formulated to help maintain bone density and strength, supporting optimal bone health.** No matter what your age, you need to care for your bones. Supporting bone health with high-quality Calcium, Magnesium and Vitamin D is simple with this all-in-one supplement. Each of these nutrients plays an essential role in maintaining bone health.** Calcium and Magnesium are important for muscle contractions as well as bone health.** Vitamin D contributes to immune system health.** Calcium is the primary mineral responsible for strong bones and teeth, and Magnesium and Vitamin D are essential for calcium transport and absorption.** No Artificial Flavor or Sweetener, No Preservatives, No Sugar, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast, No Fish, Sodium Free.