When your body lacks vitamin D, it can disrupt several important functions, especially the bones, muscles and immune system.

Do you often feel drained, sleepy, or unusually weak by afternoon, even after a full night’s sleep? You’re not alone.

Know how poor sleep and vitamin D deficiency in children can impact brain growth, immunity, focus, behavior, and long-term ...

In India, vitamin D deficiency levels are present in 30 – 50% population, higher than what is seen in developed countries ...

Researchers have found a potential link between vitamin D deficiency and a higher rate of hospitalization for respiratory ...

Plus, experts explain what the findings could mean for you.

A Verywell Health editor shares her experience with vitamin D deficiency and the impact that vitamin D supplements had on her ...

I thought constant exhaustion was just part of a busy life, despite sleeping well, exercising, and eating right. When nothing ...

For decades afterward, vitamin D was viewed narrowly as a “bone vitamin” in spite of the success of sanatoriums. Once rickets was largely eliminated through the supplementation of food, the medical ...

A lot of people think that snoring is only a minor inconvenience, and/or due to a lack of sleep, nasal congestion, or ...

The CDC says vitamin D deficiency may also raise the risk of falling and this time of year. So can the weather. "We don't ...

Scientists are still untangling why the nutrient gap persists—and what it reveals about how women’s health is studied and treated.