Key takeaways
- Vitamin D deficiency is very common in India despite plenty of sunshine.
- Below 20 ng/mL is deficient, 20–29 insufficient and 30–100 ng/mL sufficient.
- Tiredness, bone pain and muscle weakness are common signs - many people have none.
- Take supplements only in the dose your doctor prescribes, and retest after 3 months.
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- Vitamin D (25-OH)
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- Vitamin B12
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- Calcium
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It sounds surprising in a sunny country, but vitamin D deficiency is extremely common in India - studies across Indian cities consistently find a majority of adults with low levels. Indoor lifestyles, office hours, pollution, covering the skin and darker skin tone (which needs more sun to make vitamin D) all contribute. The vitamin D (25-OH) test is the simple blood test that tells you where you stand.
At HWP Diagnostic the vitamin D test costs ₹799 with free home sample collection.
Why vitamin D matters
Vitamin D helps your body absorb calcium, keeping bones and teeth strong. It also supports muscle function and the immune system. Long-term deficiency can cause bone thinning (osteomalacia in adults, rickets in children) and raises the risk of fractures.
Symptoms of vitamin D deficiency
- Constant tiredness and low energy
- Bone pain, low back pain and aching joints
- Muscle weakness, cramps
- Low mood
- Frequent infections
- Hair fall and slow wound healing
Many people have no symptoms at all, which is why testing is worthwhile.
Vitamin D normal levels
| 25-OH vitamin D (ng/mL) | Status |
|---|---|
| Below 20 | Deficient |
| 20 – 29 | Insufficient |
| 30 – 100 | Sufficient |
| Above 100–150 | Possible excess / toxicity |
Some labs report in nmol/L (divide by 2.5 to convert to ng/mL). Always read your value against the range on your report.
Who should test?
- Office workers and anyone who gets little direct sunlight.
- People with bone pain, frequent fractures or osteoporosis.
- Women during pregnancy and after menopause; elderly people.
- People with obesity, kidney or liver disease, or conditions that affect absorption.
- Anyone on vitamin D supplements - to check the dose is right after about 3 months.
Improving your vitamin D
- Get sensible sun exposure on arms and legs for 15–30 minutes a few times a week, when advised by your doctor.
- Include fatty fish, egg yolks and fortified milk or foods.
- Take supplements only in the dose your doctor prescribes - very high doses taken without monitoring can cause toxicity.
Vitamin D deficiency often travels with low vitamin B12 (₹799). Our vitamin test packages check both together at a lower combined price.
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Vitamin D (25-OH)
- Report in 24 hrs
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Vitamin B12
- Report in 24 hrs
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Calcium
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PTH - Intact (Parathyroid Hormone)
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More tests related to this topic
Other Vitamin tests you can book with free home sample collection.
25 OH Vitamin D
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Ferritin
- Report in 24 hrs
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Folic acid
- Report in 24 hrs
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GD Wellness Vitamin Profile (2)
- Report in 48 hrs
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GD Wellness Vitamin Profile (3)
- Report in 48 hrs
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RBC Folate
- Report in 48 hrs
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Vitamin A (All trans Retinol)
- Report in 24 hrs
- Free home collection
Vitamin B1 (Thiamine)
- Report in 24 hrs
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Vitamin B12 - Active
- Report in 24 hrs
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Vitamin B2 (Riboflavin) - Quantitative, EDTA Blood
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Vitamin B3 (Niacin) - Quantitative, Serum
- Report in 24 hrs
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Vitamin B5 (Pantothenic acid) - Quantitative, Serum
- Report in 24 hrs
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Get more from the same visit
Health packages that already include these tests, and tests people usually add.
Frequently asked questions
What is the normal vitamin D level?
Commonly used cut-offs for 25-OH vitamin D are: below 20 ng/mL deficient, 20–29 ng/mL insufficient, and 30–100 ng/mL sufficient. Levels above 100–150 ng/mL may indicate excess from supplements.
Is fasting needed for a vitamin D test?
No, vitamin D can be tested at any time without fasting.
How long does it take to correct vitamin D deficiency?
With supplements prescribed by your doctor, levels usually improve over 8–12 weeks. Retest after about 3 months to confirm.
HWP Diagnostic Editorial Team
Health guides written by the team at HWP Diagnostic, Mumbai, to help you understand your tests before you book. This article is for general education and is not a substitute for medical advice - reference ranges vary between labs, so always discuss your results with your doctor. Read our editorial policy. Photos: Pexels.
