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 ...

Medically reviewed by Daniel Combs, MD Most kids can get all the nutrients they need from a healthy and balanced diet, and ...

Now, a new study suggests vitamin D has yet another protective role: helping our cells live longer. According to the findings ...

Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when ...

New research suggests that vitamin D supplements may slow biological aging by protecting telomeres, the DNA caps linked to ...

The NHS says 10 micrograms (μg), or 400 International Units (IU), is the correct vitamin D supplement dosage for most people. Babies, up to the age of one year old, need between 8.5 and 10 ...

“The timing of when to take the vitamin D supplement shouldn’t matter, but it should be taken with food,” Davidson says.

Just as good, it contains the exact amount of vitamin D (400 IU) that our experts recommend for babies. What’s great about this top-rated formulation — with nearly 5,000 rave reviews on Amazon ...

Our latest tests yield some good news for the many people who take a daily vitamin D pill, or one that combines calcium and vitamin D: All of the 32 products met or exceeded their claimed levels ...

Vitamin D, the so-called “sunshine vitamin” as it’s produced in the skin during sun exposure, is one of the most important nutrients for our health, yet many of us are not getting enough of it.