I spoke with board-certified dermatologists to understand whether hair-growth vitamins are effective, who they’re actually ...

Vitamin D is vital for immunity, brain health, strong bones, and overall well-being, but taking in too much from supplements ...

Vitamin C is vital to immune function and the maintenance of bone, skin, teeth, and joints. Learn more about its wide range of health benefits.

Doctors explain why vitamin D supplements may not work properly if your kidneys are unhealthy, and how kidney function ...

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

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.

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Most adults can safely take vitamin D supplements every ...

Think about the little habits you do every day-for many of us, that includes taking a multivitamin. If that's a regular part ...

People with vitamin D deficiency are at greater risk of becoming depressed, and those with depression are more likely to be ...

Vitamin D absorption is significantly impacted by what you eat and when you take supplements. High-fibre meals, excessive vitamin A, and certain medic ...

Vitamin supplements are a common part of the American diet. Look in any household pantry or refrigerator, and you're bound to find at least a bottle of vitamin C. IbisWorld reported that Americans ...

Vitamin D is important for your bones, muscles, nerves, immune system, and more. But if you get too much, it could lead to a rare and possibly serious condition called vitamin D toxicity. You may hear ...