As many of us battle colds, coughs, and the flu during another winter season, a familiar piece of advice is likely to recirculate: Make sure you're loading up on vitamin C. After all, the nutrient has ...

When you think of vitamin C, you probably think of citrus. Oranges, grapefruits, and lemons are packed with the nutrient, which helps your body produce collagen, absorb iron, and fight off infections, ...

As someone with a fairly minimal skin-care routine, it’s difficult to convince me to add a new product or step. But vitamin C is one of those actually helpful ingredients. The antioxidant promises to ...