Then, after supplementing with more than you currently are, get a re-rest in six months to see what your new levels are. Because vitamin D intake does not necessarily correlate to blood 25-hydroxyvitamin D levels, getting a blood test from your doctor can inform you on your current blood levels of vitamin D. So if you are in the 0.22 percent of people with wildly high vitamin D levels, you may want to back off on your supplementation.įor the 99.78 percent of other people on the planet, you are likely not taking enough vitamin D. The rate was 3.8 percent of this tiny subset with high vitamin D levels who had atrial fibrillation, compared to 1.4 percent of those with normal vitamin D levels. These people had an increased occurrence of atrial fibrillation – irregular heartbeats – compared to lower vitamin D levels. Turns out there was a small subset of 291 people of the 132,000 who had 25-hydroxyvitamin D levels above 100 ng/ml. So shouldn’t the headlines have said something decidedly different? The higher-D group also had significantly lower risk of heart failure, coronary artery disease, kidney failure, depression and prior stroke. Those with 25-hydroxyvitamin D levels between 81 and 100 ng/ml had a 36 percent reduction in hypertension incidence compared to the deficient group.
In the study, those with 25-hydroxyvitamin D levels between 61 and 80 ng/ml had a 52 percent reduced risk of diabetes compared to those with deficient levels, described as below 20 ng/ml. Most vitamin D researchers, as well as progressive physicians, said that number is far too conservative, with the minimum being at least 30 ng/ml, with optimal levels ranging from 40-80 ng/ml. In it, researchers followed 132,000 adult Utahns (average age 52 years old) for 20 months.Įarlier this year, the Institutes of Medicine came out with revised vitamin D recommendations that declared blood levels below 20 ng/ml as too low. The study in question was a presentation at a meeting of the American Heart Association on November 16.
Vitamin d video not recording time tv#
Only this time, the TV broadcasters alerted, “Too much vitamin D can cause heart problems.” America’s favorite letter vitamin, the sunshine vitamin D, is continuing to make news in the research front.