Magnesium & Vitamin D3 CapsulesMagnesium and Vitamin D3 capsules provide a powerful combination of essential nutrients that support bone density, muscle function, and immune system health. Several brands offer supplements that combine these ingredients, often alongside calcium and zinc. Key Benefits The combination of magnesium and vitamin D3 works synergistically in the body. Bone Health: Vitamin D3 enhances the body's absorption of calcium, and magnesium helps activate vitamin D