If you have low vitamin D, the best way to make sure you are getting enough is to take a dietary supplement. Talk to your ...

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

Another key difference between the two forms of vitamin D is their source. “Vitamin D2 is usually produced by plants when exposed to sunlight,” Dr. Jiang says. Meanwhile, vitamin D3 is found in animal ...

If you’re considering taking vitamin D3, it’s important you always consult your doctor first. Your healthcare provider can order a blood test to check your vitamin D levels, which will ...

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The body produces vitamin D3, which is converted into active vitamin D. Getting five to 30 minutes of sunlight midday at least a few times a week is thought to be enough to maintain sufficient ...

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According to Dr. Sangwan, the best way to determine whether or not you have a vitamin D deficiency is to visit your primary care doctor and ask for a test called the 25-hydroxy vitamin D test.

Doctors often favor the supplement because of the dangers of UV rays and the difficulty of getting vitamin D from diet alone. Oily fish is the best source of D3, but few people want to eat fish daily.

Here, we spoke with doctors and a registered dietitian to get the details about D2 vs. D3, including the best sources of each. 3 differences between vitamin D2 vs. D3 ...

Vitamin D3, also known as cholecalciferol, is synthesized in the skin upon exposure to sunlight, says Hodson. "It can also be consumed through dietary sources like fish, and supplements," Hodson adds.