Vitamin C may be best known for its immune-boosting powers, helping you fight off colds, control infections, and heal wounds, ...

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

As for why cortisol varies throughout the day: "Cortisol is very important in helping a person transition from sleep to wakefulness," Zalzala explained. "This triggers a 'morning cortisol surge' -- a ...

Vitamin C is already known for brightening skin and protecting against damage, but a new Japanese study shows it may also thicken ageing skin by switching on key genes that promote skin repair.

Too much vitamin C can lead to kidney stones, iron overload, gut issues, and skin damage. Here's how to protect yourself from toxic overload.

Discover the best dietitian-recommended vitamin C supplements ideal for boosting immunity, supporting skin health, and enhancing overall wellness.

Certain nutrient deficiencies, like vitamin B12, vitamin D, and magnesium deficiency, may contribute to or worsen sciatic nerve pain. Learn more here.

A vitamin B12 deficiency is not a sign of cancer. However, there does appear to be a link between vitamin B12 and cancer risk. Learn more here.

Research shows vitamin D deficiency in newborns increases risk of mental disorders like ADHD, autism, and schizophrenia. Supplements during pregnancy may help.

The patent for SkinCeuticals' pricey C E Ferulic serum expired. Skincare industry experts told BI what it would take to get cheaper dupes in the mix.