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How vitamin D keeps you young and thin

Analysis by Dr. Joseph Mercola Fact Checked

how vitamin d keeps you young

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  • Researchers found an association between vitamin D and leptin levels. The hormone leptin is secreted by fat cells in proportion to fat deposits, signaling the hypothalamus to regulate energy balance
  • Researchers have found those with nonalcoholic fatty liver disease (NAFLD) often present with vitamin D deficiency; however, the research into supplementation is not consistent, potentially because supplement doses are not high enough to affect a change
  • Vitamin D is metabolized in the liver and undergoes further hydroxylation in the kidney, producing 1,25 dihydroxyvitamin D3, upregulating a transcription factor used to reduce reactive oxygen species and decrease cellular aging
  • Vitamin D insufficiency is linked to several negative health conditions, including cancer and cardiovascular disease. While it is best to optimize vitamin D levels with safe sun exposure, if you find supplementation is necessary after a serum vitamin D test, also supplement with magnesium and vitamin K2 (MK-7)

Your body needs vitamins and certain nutrients to grow and develop normally. Vitamin D is one of them. Although not technically a vitamin — it's actually a fat-soluble hormone that transforms into vitamin D in your body — it's important to several different bodily processes. It's not commonly found in foods, but is added to some processed foods. It's also available in supplement form.

Optimally, your body will make vitamin D when your skin is exposed to sunlight; hence, it's also known as the sunshine vitamin. As mentioned, it plays a number of roles in the body, including helping the gut absorb calcium necessary for strong bones, modulating cell growth and optimizing your neuromuscular and immune functions.

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