Taking high-dose vitamin E supplements long-term can cause serious side effects like bleeding, stroke, and heart failure. Learn safe dosing and warning signs.

It was shockingly easy to buy injectable supplements, and the unlabelled 'male enhancement' freebies were the final straw ...

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.

Health experts warn that combining certain supplements—or taking them at the wrong time—can block nutrient absorption, cause ...

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

A new study found that vitamin D supplementation offered no statistically significant protection against acute respiratory infections. Vitamin D may be helpful for protecting some groups of people, ...

Vitamin D supplements may lower cholesterol, but the evidence is mixed. Avoiding high doses of vitamin D can prevent nausea and kidney stones.

The sunshine vitamin could affect your immune system and heart health. It has started to get really wintry here in London over the last few days. The mornings are frosty, the wind is biting, and it’s ...

Vitamin D is known to be essential to many aspects of human health — but a new study suggests that taking a certain form of it can have a negative effect. The more potent and longer-lasting form, ...

Vitamin D is known to be essential to many aspects of human health — but a new study suggests that taking a certain form of it can have a negative effect. The more potent and longer-lasting form, ...

Azelaic acid and vitamin C both reduce dark patches and blemishes and help brighten skin. Azelaic acid also reduces skin inflammation and is approved to treat a type of rosacea. It can also help ...