Vitamin B3 (Niacin; Nicotinamide)
The Vitamin B3 (Niacin; Nicotinamide) test measures the level of niacin and its derivatives in your blood. Vitamin B3 is essential for converting food into energy and supports healthy skin, nerves, and digestion. This test is useful for detecting deficiencies that may arise due to poor nutrition, alcohol dependency, or certain medical conditions.
Vitamin B3 (Niacin; Nicotinamide)
- Price: £99.00 (Including Phlebotomy)
- Code: MLVB3
- TAT: 10-11 Working Days
- Sample Type: Blood
Why is this Test Important?
Vitamin B3 plays a key role in turning carbohydrates, fats, and proteins into usable energy.
Supports the maintenance of healthy skin and proper functioning of the nervous system.
Niacin has been associated with healthy cholesterol levels and improved circulation.
Used to identify pellagra (a condition caused by niacin deficiency) and assess overall nutritional status.

Vitamin B3 (Niacin; Nicotinamide) FAQs
A small blood sample is taken from a vein in your arm by a qualified phlebotomist.
No special preparation is usually needed, but follow any instructions provided by your healthcare provider.
Turnaround time is approximately 10-11 working days.
Low levels may be addressed through dietary improvements or supplementation under medical guidance.
Book Your Vitamin B3 (Niacin; Nicotinamide) Test Today!
Get your Vitamin B3 test for £99.00 at Marylebone Diagnostic Centre in London and take an important step toward monitoring and improving your nutritional health.