We updated this article in November 2022 to add more information about each featured product, based on extensive research done by our team. Most experts agree that it’s best to get your vitamins and ...

More than 40 percent of the U.S. population is estimated to have a vitamin D deficiency, especially in regions with less year-round sun exposure. The vitamin, which is vital for the body’s absorption ...

Learn the best vitamin D-rich foods, how much they provide, and why combining food, sunlight, and supplements is often the most effective approach for optimal health.

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 ...

Share on Pinterest For most people, a daily dose of 400 to 1,000 international units of vitamin D is sufficient. Getty Images Doctors are warning patients to be cautious about the amount of vitamin D ...

Also known as the “sunshine vitamin,” vitamin D is an essential vitamin that’s not really a vitamin. That’s because it’s actually a hormone. Your body makes it from cholesterol, and the process occurs ...

Like other vitamins, vitamin D is a substance needed for health but only in tiny amounts. Unlike other vitamins, it doesn't occur naturally in many foods (except seafood, mushrooms, and egg yolks), ...