Reference summary — not medical advice or a personal risk estimate.
Opium consumption
Summary
Long-term opium use is associated with multiple cancers.
Detail
Opium consumption is Group 1 with sufficient evidence for cancers of the lung, urinary bladder and larynx, and limited evidence for esophageal and pancreatic cancers. Use is most common in parts of Iran, Afghanistan and surrounding regions.
Regional relevance
global
Documented in these products
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Sources
Consumer references
Third-party tools some readers use alongside primary evidence. Meyron doesn't endorse them; we link them because you'll otherwise hit them anyway.
- EWG Dirty Dozen (pesticide residues on produce)
Consumer ranking of produce items with the highest pesticide residues.
- California Prop 65 list
State of California's list of chemicals known to cause cancer or reproductive harm.
- Yuka (packaged-food & cosmetics scanner)
Consumer app that rates packaged-food and cosmetic products.