Learn about the best time of day and way to take vitamin D and if you should consider a supplementing with this nutrient.

Altogether, 99 suitable studies were found that included a total of 17,656 participants ... those who started with a 25-hydroxy vitamin D level of less than 15.0 ng/mL (below 20 ng/mL is generally ...

Since first described almost a century ago, vitamin D preparations have been successfully used as a public health intervention to prevent nutritional rickets. In this manuscript, we document the ...

Our previous publication (9) described the methods and instruments used to measure biochemical parameters, including blood urea nitrogen (BUN), serum creatinine (SCr), alanine aminotransferase (ALT), ...