Microwave popcorn and cancer concerns
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The possible link between microwave popcorn and cancer isn’t from the popcorn itself, but from chemicals called perfluorinated compounds (PFCs) found in the lining of some bags. The concern is that PFCs can break down into perfluorooctanoic acid (PFOA), a substance suspected of increasing cancer risk. While many manufacturers have phased out these chemicals, if you’re still worried, a simple alternative is to make your own popcorn at home using the stove or an air popper.
Source
Susmann HP, Schaider LA, Rodgers KM, Rudel RA. Dietary Habits Related to Food Packaging and Population Exposure to PFASs. Environ Health Perspect. 2019 Oct;127(10):107003. doi: 10.1289/EHP4092. Epub 2019 Oct 9. Erratum in: Environ Health Perspect. 2023 Jun;131(6):69001. doi: 10.1289/EHP12343. PMID: 31596611; PMCID: PMC6867167.
Additional Reading
https://www.healthline.com/health/microwave-popcorn-cancer
https://www.verywellhealth.com/microwave-popcorn-and-cancer-5085309
https://www.medicalnewstoday.com/articles/does-microwave-popcorn-cause-cancer