Some research shows that low vitamin D levels may affect joint pain related to some types of arthritis. However, the evidence is mixed, and more research is necessary to understand whether supplementation may help.

Vitamin D is a naturally occurring compound that regulates the body’s use of calcium and phosphorus. It’s crucial for bone and muscle health.

Chronically low vitamin D levels may be associated with certain symptoms, including joint pain. If you think you may have a vitamin D deficiency, talk with a healthcare professional about testing.

There may be an association between vitamin D deficiency and joint pain. Temporary or mild vitamin D deficiency generally doesn’t cause symptoms, but chronic or severe vitamin D deficiency may lead to joint pain.

A 2018 research review and analysis shows an association between lower vitamin D levels and arthritis, chronic widespread pain, and muscle pain. Similarly, a 2023 study found an association between vitamin D deficiency and inflammation in older adults, which could contribute to pain.

Some research has also looked into whether there is an association between vitamin D levels and chronic conditions typically associated with joint pain, including osteoarthritis and rheumatoid arthritis. The results have been mixed.

For example, a small 2019 study found an association between low vitamin D levels and advanced knee osteoarthritis, but a 2018 study did not find an association with knee pain. A 2023 research review and analysis did not find an association between vitamin D deficiency and the risk of rheumatoid arthritis, but it also states that better studies are needed.

Research into whether vitamin D supplementation can help relieve joint pain in people without arthritis is lacking. But some studies have looked into the effects of vitamin D supplementation in people with osteoarthritis or rheumatoid arthritis.

A 2023 research review suggests that supplementation may improve pain and function in people with knee osteoarthritis. However, longer and more in-depth studies are needed to confirm the benefits.

Another research review and analysis looked into whether vitamin D supplementation could benefit people with rheumatoid arthritis. It suggests that supplementation may help improve disease activity, pain, and tenderness in joints, but the results varied greatly between subgroups and more research is needed.

Ultimately, more studies are needed to understand whether getting more vitamin D could be an effective intervention for joint pain in people with and without arthritis.

There are a few ways to boost your vitamin D levels:

For healthy people between the ages of 18 and 70, the Office of Dietary Supplements recommends a daily intake of 15 micrograms (mcg) or 600 IU.

However, people with a vitamin D deficiency may need higher daily doses. Ask a healthcare professional about the best dose for you.

If you think you may have a vitamin D deficiency, a healthcare professional, such as a primary care physician, can order a simple blood test to evaluate your levels.

Your doctor may also order additional testing, such as a bone density scan, to pinpoint possible causes of chronic joint pain.

In some cases, joint pain may be related to vitamin D deficiency. It’s still not clear whether getting more vitamin D will help relieve joint pain.

If you’re experiencing joint pain and want to get your vitamin D levels tested, talk with a healthcare professional.