Which vitamin is essential for calcium absorption?

The vitamin that is essential for calcium absorption is Vitamin D. This vitamin plays a critical role in the regulation of calcium and phosphate in the body, which is vital for maintaining bone health and overall skeletal integrity. When the body has sufficient Vitamin D, it enhances the intestinal absorption of calcium from food, ensuring that bones remain strong and that calcium levels in the blood are kept within an optimal range.

While other vitamins such as A, C, and E have various important roles in the body, they do not directly influence the absorption of calcium. Vitamin A is involved in vision and immune function, Vitamin C is necessary for the synthesis of collagen and has antioxidant properties, and Vitamin E primarily serves as an antioxidant that protects cell membranes.