vitamin D level
Sun-exposure blood marker
A vitamin D level is the concentration of vitamin D measured in the blood, typically expressed in nanograms per milliliter.
Doctors order vitamin D level tests to check for deficiency, which can affect bone health, immune function, and mood: My vitamin D level was low, so I started taking supplements.
The term appears constantly in health discussions, often with anxiety about optimal ranges.
- sunlightRadiance from our star
- sun exposureLight from sky reaching skin
- calciumElement twenty, builds bones
- bone healthCondition of bones
- bonesRigid internal support structure
deficiency · supplements · daily dose · blood test · blood work · sunshine · fatigue · absorption · fortified · milk · UV · osteoporosis · immune · fish oil · fatty fish · winter · winter blues · indoor
- Lab Valuesglucose, creatinine, hemoglobin, hematocrit, BUN
- medical testsblood test, blood tests, CT scan, X-ray, urine tests
- Health Metricsblood pressure, heart rate, pulse, BMI, blood sugar