Vitamin D Deficiency
Information and suggested lab tests.
What it is
Vitamin D supports bone and muscle health. Deficiency is common and can contribute to aches, cramps, and fatigue.
Diagnosis and tests
25-OH Vitamin D is the standard test. Your clinician may combine it with other tests depending on symptoms.
Treatment and management
Sun exposure and clinician-guided supplementation. Avoid very high doses without testing and supervision.
This is general information and does not replace medical advice. For diagnosis or treatment decisions, consult a qualified clinician.
FAQs
Do I need fasting?
No.
How long to improve?
Many people improve over weeks after correction; follow-up may be advised.
Should everyone take supplements?
Not necessarily; testing helps tailor dose and duration.