Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

Low levels of vitamin D seem to raise your risk of heart attack but scientists are still figuring out why—and whether ...

Supplements aren’t reviewed for safety and effectiveness, but disclaimers about health benefits are required on products.

Learn how vitamin D benefits your body, and how to know if you're getting enough of this key nutrient or if you need more from sun exposure, your diet, or supplements.

Tuna is among the many types of fish that are hearty sources of vitamin D. In fact, a serving can provide over 5% of your ...

In today’s supplement-obsessed culture, it’s easy to assume that if something is sold over the counter and marketed as ...

Christopher Groux is an editor, writer and accessibility advocate. Before joining the Forbes Health team, he covered Accessibility at Reviewed and gaming at Inverse and Newsweek. When he’s not ...