“They may at least claim to give you energy,” Matheny says. Many stimulant-free pre-workout supplements advertise that ...

Weight loss supplements often promise quick results, but their effectiveness varies. Caffeine and green tea extract may offer ...

"Many Americans are deficient in vitamin D due to limited sun exposure from indoor lifestyles, sunscreen use and our northern ...

Vitamin D deficiency, a widespread issue affecting billions globally, stems from insufficient sunlight exposure, diet, or ...

A side effect the medical community is worried about is peripheral neuropathy – where there is damage to the nerves outside ...

When the sun is out, your body can potentially make its own vitamin D, but it still may make sense to continue with ...

The Recommended Dietary Allowance (RDA) for vitamin C depends on a handful of factors, including age and sex (for adults): 19 ...

Another key difference between the two forms of vitamin D is their source. “Vitamin D2 is usually produced by plants when ...

Vitamin C is a co-factor (meaning it’s a required element) in a process that activates genes that are involved in cell ...

Many medical and nutritional experts strongly support dietary supplements. But it's not all good news. Here's how to weigh the pros and cons.

Perhaps best known as a immune-system boost or antidote to scurvy, vitamin C has been found to rejuvenate aging skin by ...

The expiration date on your vitamin bottle often doesn't reflect what you believe. If you're worried about supplements ...