Symptoms of a vitamin C deficiency include weakness, bruising, and dry skin. Learn more about the warning signs and how to ...

It is possible to overdose on vitamins. It is important to know how much you're getting in both food and supplements.

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, and how regularly you use it. Learn how to make the most of your vitamins ...