Which polyphenols in particular are you referring to out of interest? As far as I understand there's plenty present in hops: "although added in 100 times less

Which polyphenols in particular are you referring to out of interest? As far as I understand there's plenty present in hops: "although added in 100 times lesser quantity than malt, it can account for 30% of total beer polyphenols" https://cdn.uclouvain.be/public/Exports%20reddot/inbr/documents/Polyphenols_and_Beer_Quality_final.pdf https://cdn.uclouvain.be/public/Exports%20reddot/inbr/docume... And I've never heard of any issues with those with respect to cancer.