Popular vitamin supplement could have unwelcome health impact, researchers warn

Researchers from the University of Surrey in the UK found that taking vitamin D2 can cause reduced levels of vitamin D3 in ...

Why high dose vitamin D supplements could cause side effects

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

U.S. FDA approves first COVID-19 test kit for home use

The U.S. Food and Drug Administration said on Tuesday it had approved the first COVID-19 self-testing kit for home use that provides results within 30 minutes.

Vitamin D supplements: How much you should take each day, according to dietitians

While the recommended daily intake of vitamin D is 600 international units (IU) a day, you may need to take up to 3000 IU ...