Vitamin D (25-OH) in Mumbai

No fasting is required for this test. You can have it done at any time.

Despite abundant sunlight, indoor lifestyles, pollution, extensive clothing coverage, sunscreen use, and darker skin (which needs more sun exposure to produce vitamin D) all contribute to widespread deficiency.

Typically with vitamin D supplements (dose depends on severity) alongside safe sun exposure and dietary sources like fortified foods and fatty fish. Your doctor will guide dosage and follow-up testing.

Usually after 8-12 weeks of supplementation, to check whether levels have improved and adjust the dose if needed.

Yes, excessive supplementation (well beyond recommended doses) can raise blood calcium to unsafe levels - always follow your doctor’s prescribed dosage rather than self-medicating with high-dose supplements.

It’s one of several contributing factors that can be associated with hair thinning, alongside iron, thyroid and other nutritional factors - your doctor may check multiple markers together.

Vitamin D (25-OH) is a blood test. Vitamin D deficiency screening - bone health, immunity and fatigue.

The Vitamin D (25-OH) may be ordered when a healthcare professional needs information about the condition or health area assessed by this test. Vitamin D supports bones, immunity and mood, yet deficiency is widespread even in sunny climates. This test tells you whether you need supplementation and by how much.

Vitamin D deficiency screening - bone health, immunity and fatigue.

The test may be relevant for people whose symptoms, medical history, screening needs or treatment monitoring match the purpose of the Vitamin D (25-OH).

No fasting required.

No, fasting is not required for the Vitamin D (25-OH). You can eat and drink normally unless your doctor has advised otherwise.

The Vitamin D (25-OH) is done on a blood sample.

For a blood-based test, a small blood sample is collected by a trained healthcare professional, usually from a vein in the arm. The collection normally takes only a few minutes; mild temporary discomfort or bruising can occur at the puncture site.

Reports for the Vitamin D (25-OH) are usually ready within 24 hours of sample collection. You receive them on WhatsApp and email.

The Vitamin D (25-OH) costs Rs 899 at HWP Diagnostic (MRP Rs 1800). Home sample collection is free.

Your report should be read using the reference interval, unit and method shown by the performing laboratory. A result outside a reference interval does not automatically establish a diagnosis, and a result inside the interval does not rule out every health problem. Clinical interpretation depends on symptoms, history and other findings.

If the Vitamin D (25-OH) is reported as high, low, positive, negative or otherwise outside the laboratory's stated interval, the meaning depends on the specific test and the reason it was ordered. Your clinician may consider repeat testing, related investigations or other clinical information before deciding what the result means.

The Vitamin D (25-OH) can provide important information, but laboratory results are generally interpreted together with symptoms, medical history, examination and other investigations. A single result should not be treated as a diagnosis without clinical context.

Some medicines, supplements, food, exercise and other pre-test factors can affect particular laboratory results. Tell the healthcare professional about medicines and supplements you take, and do not stop prescribed medicines unless your clinician tells you to.