Posts Tagged: Vitamin D

Your Question, Expert Answer on Vitamin D: What is Ergocalciferol?


Q. My husband found out his vitamin D level was 16. His doctor prescribed 50,000 of ergocalciferol. What is ergocalciferol? A. The only prescription vitamin D in the US is “ergocalciferol” at the dose of 50,000 IU (International Units). Ergocalciferol is vitamin D2, which comes from plant sources. It is made by ultraviolet irradiation of… Read more

Vitamin D Blood Levels and Kidney Stones


Vitamin D supplements continue to be a hot topic. The risk of kidney stones from taking vitamin D supplements is not completely clear. A new study published in the American Journal of Public Health found no risk of kidney stones with higher vitamin D blood levels. A higher risk of kidney stones was originally reported… Read more

Vitamin D Supplements and Bone: Another Analysis


Yet another meta-analysis on the topic of vitamin D supplements and bone was published online today in The Lancet (October 11, 2013). The focus of this meta-analysis by New Zealand Professor Ian Reid and colleagues was changes in bone mineral density with vitamin D supplementation. They identified all randomized, placebo-controlled studies that assessed the effects… Read more

Vitamin D, Calcium, and Common Sense

Vitamin D and Calcium Supplements

Confused about calcium and vitamin D? Who isn’t? The recent media coverage on the topic of calcium and vitamin D has created a tremendous amount of confusion among not only you, but your health care providers, too. Unfortunately, this news coverage may be counterproductive to promoting adequate calcium and vitamin D intake for bone health.… Read more

Football Injuries Linked to Vitamin D


Vitamin D is linked with muscle function and performance. A new study shows low vitamin D even in professional football players. In a small study of a single NFL team, researchers included vitamin D levels as part of the routine pre-season evaluation conducted in the spring of 2010. Only one-fifth of the players had normal… Read more