Sunlight and diet provide most of our vitamin D, but in modern life, many people struggle to maintain optimal levels. Whether ...

Since vitamin D accumulates in the body, taking a high-dose supplement may lead to vitamin D toxicity. This causes nausea, vomiting, and weakness.

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission Here’s our process. Finding the best vitamin D supplement can depend on ...

Take vitamin D supplements only under medical guidance, follow prescribed doses, and get regular blood tests to monitor ...

Taking too much vitamin D can cause nausea, vomiting, weakness, and bone pain. Over time, vitamin D toxicity may cause heart ...

COPENHAGEN, Denmark — High-dose oral cholecalciferol (vitamin D 3) supplementation significantly reduces evidence of disease activity in patients with clinically isolated syndrome (CIS), results of a ...

A new study suggests potential heart-protective effects from taking this supplement, especially for older adults already taking heart medicines. High-dose vitamin D supplements taken once a month may ...

Discover the safe way to support your child’s growth with vitamin D—understand the signs of overdose, proper dosage, and how ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. Research has ...

Severe deficiency of vitamin D (< 25 nmol/L) has been associated with a significantly increased risk for cataracts, particularly in people younger than 50 years. Researchers examined cross-sectional ...