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 ...

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

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

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

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

Vitamin B-12 affects brain health in many different ways. It helps build and maintain myelin, which is a protective covering ...

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 ...