What is a vitamin D hydroxy test?
A vitamin D 25-hydroxy test is a simple blood test used by doctors to measure vitamin D levels in the blood. According to the National Institutes of Health, roughly 41% of American adults have vitamin D deficiency. This can lead to bone and muscle pain, increased risk of infection, and fatigue. Additionally, vitamin D plays a crucial role in protecting the body from conditions such as:
- Cancer
- Type 2 diabetes
- Heart disease
- Depression
- Bone loss
Your doctor may recommend a vitamin D 25-hydroxy test if you are at risk of vitamin D deficiency. People at risk of a vitamin D deficiency include:
- Older adults
- Individuals with dark skin
- Individuals who do not receive much sun exposure
- Individuals managing obesity
- Individuals with osteoporosis, celiac disease, and Crohn’s disease
- Individuals who have had gastric bypass surgery