There has been no consensus on the optimal level of vitamin D intake to reduce PTH, and this is why many laboratories report the normal range of vitamin D to be so wide (20 to 40 ng/ml ...

Vitamin D, the so-called “sunshine vitamin” as it’s produced in the skin during sun exposure, is one of the most important ...

Monitoring and supplementing maternal 25(OH) vitamin D levels in patients with lupus within the 40-59 ng/mL range are crucial while preventing excessive supplementation, this study suggested.

Vitamin D deficiency is linked to chronic fatigue, says Nichola Ludlam-Raine, a specialist dietitian and the author of How Not To Eat Ultra-Processed. She points to a study of female nurses in ...