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Ingredient · Whole Food

Black Pepper

Cleaner · 9/10, higher is cleaner

How we reached this

Black pepper (Piper nigrum). FDA GRAS spice. Source of piperine alkaloid which enhances bioavailability of other compounds (curcumin notably).

Sources · 1

Products containing this · 3

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.