The pungent alkaloid of black pepper. Inhibits certain drug-metabolising enzymes and transporters, which is the basis for its use alongside curcumin — and also the reason it can affect medication levels.
1 food, grouped by presence band. Bands are used instead of amounts because compound content swings widely with cultivar, soil, storage and preparation — a single number per food would look more precise than the measurements justify.
One of the compounds this food is characterised by in the literature.