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Alternative therapy
Laetrile / amygdalin
Supplements · Herbs
Tier DHigh risk / avoidFraud / illegal marketingRating: 1/100
This therapy is flagged for fraudulent or illegal cancer‑cure marketing. Do not replace or delay standard cancer treatment. See FDA warnings for details.
Important
Do not replace or delay standard cancer treatment with unproven therapies. Always consult your oncology team before starting anything new.
Summary
Laetrile (amygdalin) has been promoted as an anti-cancer therapy but has not shown benefit in human trials.
Claims: Anti‑tumor
Evidence
Human trials show no anticancer activity.
Negative/neutral evidence: No evidence of benefit; significant toxicity reported.
Human trials show no benefit.
Safety & interactions
Associated with cyanide poisoning; not approved in the U.S.
Warnings
- • Not approved in the United States; FDA has taken enforcement actions.
Risks
- • Cyanide toxicity can cause serious harm or death.
Sources
Last reviewed: 2/19/2026 · Rating methodology