Vitamin D Deficiency Leads to Arterial Stiffness


According to a new study published by the Endocrine Society shows that Vitamin D deficiency has been linked to arterial stiffness in African American teens. Arterial stiffness is a risk factor for heart disease and stroke.

The study showed that teens who took 2,000 international units (IU) of Vitamin D supplement decreased in central arterial stiffness. This is good news for those teens that may later have a heart attack or stroke. If the diet and sun exposure is not adequate, the teens can take a supplement to help combat the risk factor, lessening their risks. This means the recommended levels of Vitamin D intake may need to be increased for this group.


Another study from the Health Behavior News Service shows that over the past two decades, Americans have cut their risk of dying from coronary heart disease (CHD) in half—through preventive measures such as those mentioned above.

Researchers found that by quitting smoking (or smoking less), watching cholesterol, and lowering their high blood pressure, Americans are only half as likely to die from a heart attack these days. And while treatment of heart disease helped, preventive measures showed the most drastic results. The treatments have not worked as well because patients often stop taking their medication or do not take them regularly enough to do much good.

Researchers are urging patients not to give up if diagnosed with CHD. There are ways to work on risk factors and decrease the chances of dying from a heart attack. By continuing to research areas such as the Vitamin D deficiency in African American teens and other ways to combat risk factors, there is increasing hope for patients with CHD.

Also, patients should continue to take their medication as directed by their physician. While it may not be as good as prevention at cutting the risks of death associated with a heart attack, it still has positive benefits and does impact the mortality rate.



Yes that sounds plausible - but it's wrong. The huge state of the art July 2010 study Common genetic determinants of vitamin D insufficiency: a genome-wide association study found that none of the genes they identified are linked with skin pigmentation. Confirmation of that interpretation in an article Here :- ” the accompanying (Lancet) editorial points out, it is somewhat surprising that none of the genes identified are linked with skin pigmentation” . A systematic review of the association between common single nucleotide polymorphisms and 25-hydroxyvitamin D concentrations "We speculate that recently identified U-shaped relationships between 25OHD concentrations and disease outcomes (i.e. increased risk at both high and low concentrations) may reflect a mixture of genotype-defined subgroups." 'Genetics to Blame for Vitamin D Deficiency?' "Researchers conducted a genome-wide association study (Common genetic determinants of vitamin D insufficiency: a genome-wide association study) that involved almost 34,000 people of European descent from 15 different studies. They used radioimmunoassay and mass spectrometry to determine vitamin D concentrations and found that variants at three genetic sites, or "loci," were significantly associated with vitamin D concentrations. The presence of harmful alleles at three "loci" more than doubled the risk of Vitamin D insufficiency." Maybe non-whites are the ones who benefit from doubling their vitamin D levels ? Nope - Vitamin D, Adiposity, and Calcified Atherosclerotic Plaque in African-Americans "positive associations exist between 25-hydroxyvitamin D and aorta and carotid artery CP in African-Americans" Many people are naturally low in vitamin D, forcing vitamin D levels up by taking supplements can only do harm. If you think you can improve yor health by conforming to the advice of Holick or - God forbid - that of Hollis, Cannel & Co at the vitamin D 'Council' who recommend (>50ng/ml) then you are in for an unpleasant surprise. Vitamin D and homeostasis Mad dogs and ....