Vitamin blood tests
Vitamin tests measure levels of key vitamins — vitamin D and B12 are among the most commonly checked in India.
Last reviewed: 2026-08-16
What does the Vitamins measure?
These tests measure vitamins such as D (25-OH), B12, folate and others that support bones, nerves and blood cells.
Why is the Vitamins ordered?
They are ordered to look into tiredness, bone symptoms or nerve symptoms, and because deficiencies are common in Indian diets.
Tests in this panel
Each test links to its own page with named reference-range sources.
Sources: [ICMR] [Endocrine Society] [WHO] [Indian Journal of Endocrinology and Metabolism] [Institute of Medicine]
- Vitamin D (25-OH)25-hydroxyvitamin D is the main form of vitamin D in your blood. Your liver makes it from the vitamin D you get from sunlight, food, and supplements, and this test measures that form.
- Vitamin B12Vitamin B12 is a vitamin that dissolves in water. Your body needs it to build red blood cells, make DNA, keep your nerves healthy, and this test measures your level.
- FolateFolate is a B vitamin your body draws on to copy DNA and divide cells, the steps behind making fresh red blood cells. This test measures the amount circulating in your blood.
- Vitamin B6Vitamin B6 is a vitamin that dissolves in water. It helps many body reactions, including how you use protein and how your nerves send signals. This test measures your level.
- Vitamin AVitamin A, also called retinol, is a vitamin stored in body fat. You need it for eyesight, a strong immune system, cell growth, and healthy skin, and this test measures how much is in your blood.
- Vitamin EVitamin E is stored in body fat and works as an antioxidant. It mops up reactive molecules that would otherwise harm cell membranes and weaken immune defences, and this test measures its blood level.
- Vitamin KVitamin K is a vitamin stored in body fat. Your body needs it to make the proteins that let your blood clot and to keep your bones healthy. This test measures your level.
- Vitamin CVitamin C is a vitamin that dissolves in water. It helps your body make collagen for skin and gums, supports your immune system, and helps you absorb iron. This test measures your level.
- Vitamin B1 (Thiamine)Thiamine, or vitamin B1, dissolves in water and acts as a helper that lets your cells release energy from carbohydrates. Nerve and heart tissue rely heavily on that energy, so this test measures your level.
- Vitamin B2 (Riboflavin)Riboflavin, also called vitamin B2, is a vitamin that dissolves in water. It helps your body make energy and use fat, and it supports healthy skin and eyes. This test measures your level.
Questions to ask your doctor
About this result
- What do my Vitamins results mean when you read them together, rather than one value at a time?
- Which results in my Vitamins matter most for someone like me?
What to do next
- Based on my Vitamins, is there anything you would suggest I do or change?
About retesting
- Should any part of my Vitamins be repeated, and if so, when?
The bigger picture
- Does my Vitamins connect to any condition I already have, or to how I have been feeling?
Frequently asked questions
- What is included in the Vitamins?
- These tests measure vitamins such as D (25-OH), B12, folate and others that support bones, nerves and blood cells. It typically reports 10 results: Vitamin D (25-OH), Vitamin B12, Folate, Vitamin B6, Vitamin A, Vitamin E, Vitamin K, Vitamin C, and more.
- Why is the Vitamins ordered?
- They are ordered to look into tiredness, bone symptoms or nerve symptoms, and because deficiencies are common in Indian diets.
- How should the Vitamins be read as a whole?
- No single value tells the full story — the results are read together, and each value is compared against the reference range printed on your own report, which can vary by lab, method and equipment.
- Do the reference ranges in the Vitamins vary between labs?
- Yes. Ranges depend on the laboratory's equipment and method, so the range printed on your own report is the one that applies to your result. Each test page names the standards body behind its range.
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