Vitamin D--A coronary risk factor 27. May 2006 William Davis (1) Look up "coronary risk factors" in any text and you'll find high cholesterol, smoking, diabetes, and high blood pressure listed. You won't find deficiency of vitamin D listed. Ask 99% of physicians if a deficiency of vitamin D is a coronary risk factor and you'll get rolling eyes and a sigh.Yet, in the Track Your Plaque experience, vitamin D is emerging as a very important factor in coronary plaque development. We have observed that there are a substantial number of people whose lipids and lipoproteins are not abnormal enough to fully explain their heart scan score. In other words, there seems to be something else necessary to satisfactorily explain the magnitude of coronary plaque. I believe that severe vitamin D deficiency is at least one of the most important factors. We've seen many people with blood levels of vitamin in the range of severe deficiency (<20 ng/ml of 25-OH-Vitamin D3) yet bland lipids and lipoproteins. Correcting vitamin D blood levels to 50 ng/ml also seems to be among the required factors in stopping coronary plaque growth, or stopping your heart scan score from increasing.Keep your eye on this extremely important and exciting issue. Sadly, it won't be propelled into the media like the conversation about cholesterol or high-tech procedures, since no company stands to profit from it. But you and I don't have to play that game.