Vitamin deficiencies can have many unpleasant effects on the body, including hair loss (alopecia). “The body needs a lot of different nutrients to make hair,” says Stephanie Dunne, RDN, an ...

Medically reviewed by Leigh Weddle, PharmD Taking certain medications can deplete nutrients, like vitamin B12 or iron, from your body. In some cases, you may need to add a supplement to prevent or fix ...

Because the body doesn't produce vitamin C, it's important to get as part of a healthy diet. But don't take more than 2,000 milligrams per day.

Is it good to take vitamin C every day? The Recommended Dietary Allowance (RDA) of vitamin C for adults 19 and older is 90 mg for men and 75 mg for women. While pregnant and breastfeeding, women ...

Another benefit of Vitamin IV therapy is that it is an excellent way to supplement vitamins for people with digestive issues that otherwise prevent them from properly absorbing the nutrients in ...

The research was part of a comprehensive vitamin D study called VITAL. It was funded by the National Institutes of Health and began after an expert group convened by what is now the National ...