Those with higher vitamin D levels tend to have lower rates of obesity, diabetes, and hypertension. But is it cause and effect? Interventional trials finally put vitamin D to the test.
4,000 IU of vitamin D a day is recommended for elders at high risk for falling to improve muscle strength and balance, though there is something that works even better.
What do 56 randomized clinical trials involving nearly 100,000 people between the ages of 18 and 107 show vitamin D can do to our lifespan?
Sun exposure is associated with lower rates of 15 different cancers and improved cancer survival. What happened when vitamin D supplements were put to the test?
The safe dose of vitamin D supplementation to get most of the population to the optimal level is 2,000 IU a day, but the elderly and overweight may need more.
Why do some recommend thousands of units of supplemental vitamin D when the Institute of Medicine set the recommended daily intake at just 600 to 800 units?
Vitamin D supplements are put to the test in childhood asthma.
Vitamin D supplements were put to the test for Crohn’s disease.
If one is going to make an evolutionary argument for what a “natural” vitamin D level may be, how about getting vitamin D in the way nature intended: sun instead of supplements?
The Institute of Medicine’s conservative position on vitamin D is understandable, given the history of hyped vitamin supplements (vitamin A, beta carotene, folic acid, vitamin C, vitamin E) that turned out worthless—or worse.
Taking vitamin D supplements with food may be a cost-effective strategy to achieve optimum levels.
The latest revision of the official vitamin D recommendations was based on the body’s reaction to protect bone health—but what about the other three dozen affected organs?
Vitamin D deficiency may shorten one’s lifespan, but getting too much vitamin D may also adversely affect longevity.
The Institute of Medicine tripled their official vitamin D recommendation, based on target blood levels that indicate a large percentage of the U.S. population is deficient.
Should the vitamin D levels found in lifeguards be considered the norm for our species, given the fact that we evolved running around naked all day in equatorial Africa?
A reclassification of tanning beds as a Group 1 carcinogen underscores the importance of vitamin D supplementation for those at risk for deficiency.