While Vitamin D is essential for health, excess of it can cause serious health conditions, read on its preventions and more.

Over the past few decades, the "normal" blood level of vitamin D (25-OH vitamin D) was based on the amount needed to keep PTH from becoming abnormally high. Again, PTH at high levels can cause ...

With cold and flu season on the rise, plus seasonal affective disorder rearing its ugly head, our immune systems take a hit.

When Mayo Clinic researchers began studying vitamin D's effects on older adults' blood pressure, they didn't anticipate the ...

Pediatric patients with severe obstructive sleep apnea and a vitamin D deficiency faced more severe sleep apnea vs. those ...

Ongoing research has suggested a possible link between Vitamin D deficiency and dementia. Dementia is not a disease in itself ...

Mice with low vitamin D had exaggerated craving for opioids and felt the drugs’ effects more strongly—results supported in part by human medical records—suggesting that supplements should be explored ...

The Vitamin D Blood Test (25-OH Vitamin D): Who, How, When, and Where Clinically speaking, things began to change in the 1970s when the blood test for vitamin D (known as the "25-OH vitamin D ...