Vitamin B3 (Niacin)
MeasuredFiller
A B vitamin needed for cell metabolism.
Deficiency is now very uncommon where diets are mixed.
How we rate it — Filler
Rarely changes anything for someone with no symptoms.
This rating and the description above were written against published screening guidelines by someone who is not a clinician, and are awaiting review by one. We would rather say that than imply an authority we do not have.
Check-ups that include it
In 3 of the 78check-ups we track — 4%. Cheapest first.
Also sold as
Every one of these names refers to this same test. Resolving them to one canonical entry is what makes an honest comparison possible.
niacin · vitamin b3 · vitamin b3 nicotinic acid
Information here is for comparing packages, not for diagnosing yourself. Talk to a doctor about which tests you actually need.