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

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

Dr. Soma Mandal, a board-certified internist at Summit Health in New Providence, New Jersey, says that getting a CBC test is ...

Learn how nutrition directly impacts your immune system with expert tips from Dr. David Heber. Discover key nutrients like ...

Women between ages of 30 and 70 need about 600 international units, and once they're over 70, that number goes up to about ...

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

Vitamin C is an immune-boosting superhero. It’s also a nutrient that the body doesn’t make (unlike vitamin D), so you need to get it from your diet or a supplement. Besides bolstering the immune ...

A Harvard study found that vitamin D supplements may help slow biological aging by protecting telomeres, the protective caps ...

For kids ages 2 to 3 years, each serving provides 100% of a child’s vitamin A and 200% of their daily vitamin C needs. These two vitamins are important in helping the immune system function well.