Vitamin D is particularly important for women, supporting bone health and pregnancy. Learn about vitamin D, its benefits, how much women should have daily, and more.

Here’s what vitamin D3 is and why your body needs it.

Online chatter claims that vitamin D should always be taken with vitamin K2 because it directs where vitamin D goes in the body.

Adults and children over four years old should take 10 micrograms (400IU) of vitamin D per day during the autumn and winter.

Medically reviewed by Kristie Reed, PharmD Vitamin D helps your body absorb calcium, supports muscle movement, and boosts immune function. Many people take vitamin D supplements when they can’t get ...

Add Yahoo as a preferred source to see more of our stories on Google. Here’s what to know about vitamin D benefits and risks, particularly when it comes to ending fatigue. (Getty Images) You might ...

Plus, how to tell if you need to supplement at all.

Calcium and vitamin D supplement use was linked to a lower risk for cancer mortality but a higher risk for cardiovascular disease mortality among postmenopausal women. Calcium and vitamin D ...

Vitamin D tests involve taking a blood sample to measure the vitamin D levels in your bloodstream. There are two forms of vitamin D in the blood: 25-hydroxy vitamin D, or calcidiol, and 1,25-dihydroxy ...