Though it’s rare, a severe vitamin D deficiency can lead to a disease called rickets, also known as osteomalacia. Typically, ...

A 2019 study in 480 older adults linked vitamin D deficiency with fatigue symptoms. A 2020 study in 39 children associated low vitamin D levels with poor sleep quality, shorter sleep duration, and ...

You probably know vitamin D as "the sunshine vitamin," as our bodies make it when our skin is exposed to sunlight. Surprisingly, though, vitamin D deficiency is actually pretty common. A 2011 ...

A vitamin D deficiency is common, and it can lead to further health issues. Still, many people with the deficiency have no symptoms. Learn more here.

However, you may have no signs or symptoms of vitamin D deficiency, which could be flagged in a routine blood test. ... Vitamin D comes in two types: D2 and D3.

But if you’re consistently feeling gassy, crampy, or bloated, a sneaky vitamin deficiency may be to blame. A study in BMJ ...

Vitamin D2 and D3 are needed to keep the body healthy. Both of these together form Vitamin D. Know the symptoms of Vitamin D3 deficiency and which people are found to be deficient in it.

“The majority of patients with [mild-to-moderate] vitamin D deficiency have no symptoms,” says Allyson Ocean, M.D., a gastrointestinal oncologist at Weill Cornell Medicine based in New York City.