The Important Vitamin You're Probably Lacking

Getting insufficient vitamin D has long been known to contribute to lower bone density, osteoporosis and bone fractures. (Adding vitamin D to calcium supplements helps the body better absorb the calcium it needs.) Now, having low levels of vitamin D has also been linked to cardiovascular risk and death, several cancers (including breast cancer in younger women), liver disease, multiple sclerosis and other autoimmune diseases, diabetes, periodontal disease and falls (caused by weakened muscles).

Although a handful of foods contain vitamin D, it's nearly impossible to eat the amount of the nutrient you need. Sun exposure can be hard to control safely and effectiveness varies. Taking vitamin D in supplement form is the most reliable way to get what you need.

Talk with your health care provider about your specific needs and whether you should have your vitamin D level checked by a simple blood test.