Vitamin D Harvard Medical

Vitamin D | The Nutrition Source | Harvard T.H. Chan …

https://www.hsph.harvard.edu/nutritionsource/vitamin-d/

Vitamin D is both a nutrient we eat and a hormone our bodies make. It is a fat-soluble vitamin that has long been known to help the body absorb and retain calcium and phosphorus; both are critical for building bone. Also, laboratory studies show that vitamin D can reduce cancer cell growth, help control infections … See more

How much vitamin D do you need? - Harvard Health

https://www.health.harvard.edu/staying-healthy/how-much-vitamin-d-do-you-need

But ultimately, the amount of vitamin D that makes it into your bloodstream is more important than how much you're consuming. There again controversy reigns. While …

6 things you should know about vitamin D - Harvard Health

https://www.health.harvard.edu/staying-healthy/6-things-you-should-know-about-vitamin-d

Vitamin D and your health: Breaking old …

https://www.health.harvard.edu/staying-healthy/vitamin-d-and-your-health-breaking-old-rules-raising-new-hopes

Vitamin D's best-known role is to keep bones healthy by increasing the intestinal absorption of …

Taking too much vitamin D can cloud its …

https://www.health.harvard.edu/staying-healthy/taking-too-much-vitamin-d-can-cloud-its-benefits-and-create-health-risks

To safely take vitamin D supplements, it's best to stick to some simple guidelines: Watch your numbers. If …

Time for more vitamin D - Harvard Health

https://www.health.harvard.edu/staying-healthy/time-for-more-vitamin-d

Growing awareness of vitamin D's benefits coupled with the risk of vitamin D deficiency has led some experts to recommend a blood test that assesses the …

Vitamin D: What’s the "right" level?

https://www.health.harvard.edu/blog/vitamin-d-whats-right-level-2016121910893

The majority of folks have a level between 20 and 40, in my experience, and this is corroborated by the IOM’s findings in that 2010 report. But in 2011, the …

Vitamin D reduced rate of autoimmune diseases by 22

https://news.harvard.edu/gazette/story/2022/01/vitamin-d-reduced-rate-of-autoimmune-diseases-by-22/

In a new study, investigators from Brigham and Women’s Hospital found the people who took vitamin D, or vitamin D and omega-3 fatty acids, had a significantly …

Vitamin D: Finding a balance - Harvard Health

https://www.health.harvard.edu/blog/vitamin-d-finding-balance-2017072112070

Vitamin D is likely beneficial for other parts of the body as well; studies suggest an overall decrease in death in addition to reductions in blood pressure, …

Medical Policy Vitamin D Screening and Testing

https://www.harvardpilgrim.org/provider/wp-content/uploads/sites/7/2020/07/Vitamin-D-MP.pdf

Background: Vitamin D is a hormone, synthesized by the skin and metabolized by the kidney to an active hormone, calcitriol. An excess of vitamin D may lead to …