Vitamin D Continues to Dominate

There’s more good news for my favorite nutrient. In a recent meta-analysis, middle aged and elderly people who had high levels of vitamin D cut their risk of developing heart disease or elevated blood sugar nearly in half(1).

Researchers from the University of Warwick evaluated 28 studies involving almost 100,000 men and women across different ethnic groups. The data revealed a significant association between high levels of vitamin D and dramatically decreased risk of both cardiac and metabolic disorders. Compared to those with low levels, men and women who had high levels of vitamin D had a reduced risk of developing cardiovascular disease by about 33%, elevated blood sugar by 55% and metabolic syndrome by over 50%.

Cardiovascular disease is currently the leading cause of death, worldwide. But according to lead author Dr. Oscar Franco, “Targeting vitamin D deficiency in adult populations could potentially slow the current epidemics of cardiometabolic disorders.”

As I’ve said before, I believe vitamin D is the single most important nutrient we can consume. Although the recommendation for adults is only 400 to 800 IU per day, I suggest that most adults consume between 2,000 to 4,000 IU. I personally take 5,000 to 6,000 IU daily and have optimal blood levels of this vital nutrient. Now’s the time to get on board with vitamin D!

(1) Parker J, Hashmi O, Dutton D, Mavrodaris A, Stranges S, Kandala NB, Clarke A, Franco OH. Levels of vitamin D and cardiometabolic disorders: Systematic review and meta-analysis. Maturitas. March 2010 65(3):225-236.

By Dr. Allen S. Josephs Co-Founder & Director, Vitacost.com 2/24/2010


Dr. Darryl Roundy

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