What causes bone loss?

Osteoporosis - causes; Low bone density - causes

Vitamin D benefit

Vitamin D promotes retention and absorption of calcium and phosphorus, primarily in the bones. Too much vitamin D may have the opposite effect of taking calcium from the bones and depositing it in the heart or lungs, reducing their function.

Calcium source

Getting enough calcium to keep bones from thinning throughout a person's life may be made more difficult if that person has lactose intolerance or another reason, such as a tendency toward kidney stones, for avoiding calcium-rich food sources. Calcium deficiency also effects the heart and circulatory system, as well as the secretion of essential hormones. There are many ways to supplement calcium, including a growing number of fortified foods.

Your Changing Bones

Aging and Bone Loss

Your Lifestyle and Bone Loss

Medical Disorders and Bone Loss

What's Next?