Vitamin B3 (Niacin)
- Category
- Vitamins
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 8 days
- Fasting
- No Fasting
- Age
- Above 5 Years
What Is This Test?
Measures vitamin B3 (niacin) in your blood. Niacin is needed for energy metabolism and skin health.
Why this test is performed?
Detects deficiency (pellagra: rash, diarrhoea, confusion).
Who should take this test?
Fatigue, weakness, tingling or numbness, mouth ulcers, hair fall, vegetarians/vegans, older adults and people with poor diet.
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
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- Report time: In 4 days
- No fasting
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Frequently asked questions
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 6–7 days after the sample reaches the lab. You will receive the report online.
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