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 ...

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

Methylmalonic acid (MMA) is a substance that is created when your body digests protein. The amount of vitamin B12 in your body controls how much MMA your body makes. A high amount of MMA typically ...

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

Medically reviewed by Aviv Joshua, MS, RDN Key Takeaways Certain vitamins and minerals play important roles in maintaining ...

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

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

Are you confused about why you feel sleepy and low on energy all day even after getting enough sleep A doctor explains how ...

Vitamin D deficiency can lead to bone softening and subsequent bone pain and fractures. Learn its causes, diagnosis, treatment, and prevention.

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 ...