Niacin (Vitamin B3) and Memory: What the Research Says and Does Not Say
What niacin does
Niacin is a B vitamin found in meat, fish, peanuts and fortified grains. The body converts it into NAD+ and NADP, coenzymes in energy metabolism. The NIH Office of Dietary Supplements gives intake guidance and safety limits.
The cognition research
A cohort study reported that higher dietary niacin was associated with a lower risk of Alzheimer's disease and cognitive decline. Observational data cannot show cause: people who eat niacin-rich diets may differ in other ways. It does not show that capsules help.
Deficiency vs normal intake
Severe deficiency (pellagra) can cause confusion, but it is uncommon in the US because of fortification. Most people get enough from food, so extra niacin helps only if intake is low or specific mechanisms are involved.
Flushing and limits
Higher supplemental amounts cause a warm red flush; the upper limit for adults from supplements and fortified foods is 35 mg per day, according to the NIH. Large pharmacological doses can strain the liver. See niacin side effects.
Where niacin sits in HoneyPezil
It is one of six ingredients, listed for NAD+ and cell-energy support. Read the amount on your bottle; the order page lists none, as discussed in the label breakdown.
What to do with this
Eat niacin-containing foods, keep supplement amounts within label directions and track results over 60 days.
Frequently asked questions
Sources
- NIH Office of Dietary Supplements: Niacin fact sheet
- PubMed: Dietary niacin and the risk of incident Alzheimer's disease and of cognitive decline (2004)
General information, not medical advice. Offer details were checked on November 11, 2026; confirm on the order page and read the label on your bottle. See our disclaimer and how we research.