North American paw paw (NOT papaya) contains acetogenins — compounds that inhibit mitochondrial Complex I in cancer cells. Related to Graviola (Annona muricata). The anticancer mechanism is validated in vitro but ZERO human clinical trials exist. Acetogenins are also neurotoxic at high doses — epidemiological link to atypical parkinsonism in Caribbean populations consuming large quantities of Annona species. Our assessment: anti-cancer mechanism real, human evidence absent, neurotoxicity concern. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.