Holland & Barrett Calcium Plus Magnesium and Vitamin D Supplement not only aids in maintaining normal bone and muscle function but also helps reduce tiredness and fatigue, with Magnesium contributing to a normal energy-yielding metabolism. Calcium is essential for developing and maintaining strong bones and teeth and facilitates muscle contraction by enabling the interaction between muscle proteins. Vitamin D enhances the absorption of calcium and phosphorus, crucial for bone mineralization and muscle function, helping to prevent weaknesses and fractures. Magnesium contributes to bone strength by supporting bone mineral density and aids in muscle relaxation and contraction. It also plays a key role in energy production by helping convert food into ATP, reducing tiredness and fatigue. Together, these nutrients work synergistically to ensure optimal bone health, muscle function, and overall energy levels. Suitable for vegetarians, this formulation provides comprehensive support for both energy levels and overall bone health.