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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

New meta-analysis shows vitamin D helps increase lower limb muscle strength

Researchers presenting at the 2013 American College of Rheumatology (ACR) Meeting have found a positive relationship between vitamin D and muscle strength.

A Belgian research team conducted a meta-analysis, led by Charlotte Beaudart, MPH. They searched and found 214 randomized controlled trials between 1966 and February 2013 that looked at the effect of vitamin D on muscle strength. Of the total gathered, 19 studies met their inclusion criteria.

“All forms and doses of vitamin D supplementation, with or without calcium supplementation, compared with placebo or control were included,” Beaudart stated. “Muscle strength was assessed either by grip strength and/or lower limb muscle strength.”

In all, there were 4,824 participants in these 19 studies. The average age was 66 years old.

Thirteen studies observed effects of vitamin D supplementation on grip strength, while 15 observed effects of supplementation on lower limb muscle strength.

Results showed no significance between vitamin D supplements and grip strength, but did show significance in supplements increasing lower limb muscle strength.


Dantoni, T. Vitamin D Supplementation Increases Lower Limb Muscle Strength. Monthly Prescribing Reference, 2013.

5 Responses to New meta-analysis shows vitamin D helps increase lower limb muscle strength

  1. Rita and Misty says:

    Such great news for runners….

  2. Most sports require enhanced core strength in order to develop excellence, including archery. While this focuses on a specific group of muscles I feel it makes no sense to expect that the effect is isolated to only a specific area of the body. Blood and that which it carries go *everywhere* in the body. Every major tissue in the body has receptor sites for the vitamin D molecule. Any person involved in athletic performance and development needs to understand this fundamental aspect of not only elite performance but fundamental life health.

  3. Rita and Misty says:

    Ron, I thought the attached might hold interest for you:

    Vitamin D3 supplementation modulates inflammatory responses from the muscle damage induced by high-intensity exercise in SD rats.


    (There s/b a link for full text…if it doesn’t work let me know, and I will send full text to you)

  4. Rogerio Luz Coelho says:

    The problem with most studies done so far with muscle strength and even athletic performance and Vitamin D is that these studies are done in OLDER, NON ATHLETE populations. And this seems the norm.

    We are presently studying athletes and even those who train 6-8 times a week (professionals) and exposed to sun, have some 20% of deficiency (below 20 ng/dL – 50 nmol/L).

    I am hoping to being able to make a placebo double-blind study with professional athletes and diverse vitamin D intake/status, but am not quite there yet.

  5. Rogerio Luz Coelho says:

    Sorry … my athletes are below 30 ng/dL (75 nmol/L) …