Why is vitamin D important for healthy bones and joints?

Vitamin D may have a positive effect on joint health. An indication of vitamin D’s possible anti-inflammatory benefits comes from studies showing that people who meet their daily requirement for vitamin D are less likely to experience arthritis pain. For example, a study at the University of Iowa found that the risk of rheumatoid arthritis was 33 percent lower among women ages 55 to 69 with the highest vitamin D intake.
Dr. Michael Roizen, MD
Internal Medicine
Vitamin D is critical for bone and joint health, because it works hand-in-hand (or if vitamins had little hands, I guess it would) to strengthen bone and joint tissue.

How? If calcium is the ingredient that absolutely, positively has to get to your bones on time, then vitamin D is FedEx. Essentially, vitamin D increases the absorption of calcium, making it more efficient to deliver calcium to your bones so they can stay strong.

Besides being essential for good bone health, vitamin D may also be effective for your joints. Recent studies show that vitamin D may help slow the progression of arthritis. People who had high levels of vitamin D experienced less joint deterioration than those who had lower levels. Individuals with low levels of D and calcium were three more times more likely to suffer from, and age from, arthritis.

You need vitamin D for a multitude of other reasons, too, of course. For one, it's a potent cancer fighter.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.