Can vitamin D help prevent osteoporosis?
Not directly. Vitamin D does, however promote the absorption of dietary calcium and the mineralization of bones. When vitamin D is absent, these processes are impaired. Serious deficiency diseases may result, such as rickets in children and the softening of the bones in adults. Inadequate vitamin D and calcium intakes may contribute to the development of osteoporosis. Studies have shown that vitamin D supplementation reduces bone loss in older women. Vitamin D is a fat-soluble vitamin and therefore can be toxic in large amounts. The upper daily limit for adults is 50 mcg or 2,000 IU. It is best to use the DRI guideline for daily intake. Exercise has been shown to be a significant contributor to maintaining healthy bones.
