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

They may recommend taking a high dose of vitamin D for the first few weeks just to try and get you back to normal. You’ll want to test again about six months later to see if that supplementation was ...

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.

Medically reviewed by Erika Prouty, PharmD Your body needs vitamin D to function properly, but your vitamin D level may start ...

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

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 ...

Vitamin D has a strange reputation. It is called the “sunshine vitamin,” so most people assume they get enough of it simply ...

Unexplained muscle weakness, back pain, or general body aches can be early warning signs. Vitamin D helps maintain muscle function. Deficiency can cause subtle weakness that makes routine tasks feel ...

Low vitamin D levels may affect ovarian reserve, egg quality, and IVF outcomes. Here’s how deficiency can influence fertility ...

Vitamin D is one of the most essential nutrients for a child’s growth, yet it often goes unnoticed in daily health routines.

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

You might have heard that vitamin D can be crucial for bone health, and that taking supplements may be in order if you're not getting enough naturally from sunlight or from D-rich foods like eggs, ...