Here’s more good news about vitamin D: it seems to help lower LDL, also known as “bad” cholesterol, in post-menopausal women. The reduction isn’t huge, but it is significant, according to study leader Peter F. Schnatz, a professor of internal medicine at Jefferson Medical College in Philadelphia. The 576 women who participated in the study were randomly assigned to receive either a supplement containing 400 IU of vitamin D and 1,000 milligrams of calcium daily or a placebo. After three years, the women taking the supplement had higher blood levels of vitamin D and lower LDL than they had at the study’s start. In analyzing the results, the researchers controlled for the women’s vitamin D level when the study began, as well as smoking, alcohol consumption and more than 20 other variables. Because of the study’s small size, the researchers said no conclusions could be drawn about the effect of vitamin D on heart health, but they noted that among the women who took the calcium/vitamin D supplement, those whose vitamin D levels were higher also had high levels of HDL, the “good” cholesterol, as well as lower triglyceride levels.
Peter F. Schnatz et al, “Calcium/vitamin D supplementation, serum 25-hydroxyvitamin D concentrations, and cholesterol profiles in the Women’s Health Initiative calcium/vitamin D randomized trial.” Menopause, 2014; 1 DOI: 10.1097/GME.0000000000000188