How to use an at-home vitamin deficiency test For any further questions, all reputable at-home tests will have instructions and a customer care line. Most vitamin deficiency tests require a blood ...

The nutrient plays a role in memory, focus, mental health and so much more. Here's how to get more of it.

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

Vitamin B12 deficiency can cause anemia, nerve damage, cognitive changes, and mood symptoms. Experts warn it’s often missed, ...

Your fingers can reveal more about your health than you think. From tingling and stiffness to brittle nails, here are 5 ...

A vitamin D deficiency is common, but can be hard to notice. Experts say there are some unexpected symptoms linked to low vitamin D.

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

Contributor content. Here are some mechanisms linking vitamin D to hair, as well as warning signs to look out for, that can ...

A daily vitamin D supplement can support bone strength, muscle function, and balance—especially in people who are vitamin D ...

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

At-home vitamin deficiency tests are available from online retailers, including LetsGetChecked, Everlywell, MyLab Box, and more. Popular test kits can measure a person’s vitamin D, B12, or iron levels ...