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

Many people may have low vitamin D levels. Experts say this is a common issue. It can cause fatigue and muscle weakness. A ...

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

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is the ...

In a study conducted at State University involving 80 women over the age of 45, low-dose vitamin D supplementation nearly ...

Vitamin D doesn’t quite receive the same popularity that a few of the other vitamins and supplements enjoy, but it’s a good ...

Vitamin D supplements may not be an effective defense against acute respiratory infections, a recent study has found. It’s still possible the vitamin supplementation could reduce the severity ...

Vitamin D is essential for healthy bones, & a lack of it can lead to health problems, ... 400 international units (IU) a day; For children and teens aged 1-18 years: 600 IU a day; ...

The NOW High Potency Vitamin D-3 1000 IU ... thanks to it earning the highest rating on Labdoor and satisfying our expert recommendations for how much vitamin D is included (400 to 600 IU). ...

Average vitamin D3 levels ranged from 105 percent to 141 percent of the labeled amount in the adult and children's vitamin D-only products (1,000 international units, or IU, and 400 IU, respectively).