Women who might become pregnant should be especially cautious with vitamin A supplements or avoid them entirely .

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

This is a more unique symptom of riboflavin deficiency, leading to lesions at the corners of your mouth. “You may get scaling ...

The Australian regulator admits it may have underestimated the extent of the side effects from vitamin B6 supplements ...

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, ...

Vitamin D supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent ...

Many people worry that spending too much time in the hot summer sun could have serious consequences. And it’s true that people are at a heightened risk of skin damage, sun poisoning, melanoma, and ...

If I am taking vitamin A, what is a reasonable dose? I have seen reports that taking too much can cause liver damage, but ...

Being low on vitamin D can increase your risk of high blood pressure and diabetes, says Michael Holick, M.D., endocrinologist ...

High cholesterol typically doesn't cause any symptoms. In the majority of cases, the only symptoms it may cause are emergency events.