What vitamin enhances the absorption of calcium in the gastrointestinal tract?

Vitamin D is essential for the effective absorption of calcium in the gastrointestinal tract. It facilitates the intestinal absorption of calcium by promoting the synthesis of calcium-binding proteins in the intestinal lining. When vitamin D levels are adequate, the body can better utilize dietary calcium, which is crucial for maintaining strong bones and overall skeletal health.

This relationship is vital, especially in individuals at risk of calcium deficiency, as insufficient vitamin D can lead to impaired calcium absorption and subsequently to bone-related issues such as osteoporosis or rickets. Maintaining adequate levels of vitamin D through dietary sources or supplementation can significantly enhance the body's ability to absorb calcium effectively, highlighting its crucial role in bone health and mineral balance.