The evidence for 2000 international units (IU) of vitamin D supplementation per day.

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

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

The best vitamin D supplement depends on a person's age, dietary needs, and their vitamin D levels. Learn more about 6 of the best vitamin D supplements.

Participants taking 2,000 IU of vitamin D daily had significantly less telomere loss over four years, study finds.

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 ...

Vitamin D supplements slow telomere shortening, reducing biological aging Participants taking 2,000 IU of vitamin D daily had significantly less telomere loss over four years, study finds.

Vitamin D is essential for bone health, muscle development, and more. Here are the best supplements on the market, according to our dietitians.

A new study suggests vitamin D could reduce biological aging by nearly three years, highlighting its role in telomere protection and chronic disease prevention.

You can get a box of Ultra Vitamin D 2000 IU Extra Strength (96 tablets) from Boots for just 9p a tablet. You’ll find similar prices at Holland & Barrett and Morrisons too.

Overall, the trial randomly assigned people to take daily vitamin D3 (2,000 IU/day) or omega 3 fatty acid (1 g/day).

Compared with taking placebo, taking vitamin D3 supplements significantly reduced telomere shortening over four years, preventing the equivalent of nearly three years of aging compared with placebo.