Vaccinium macrocarpon fruit, containing unique A-type proanthocyanidins (PACs) and quinic acid. A-type PACs bind to the P-fimbriae of uropathogenic Escherichia coli (UPEC), preventing bacteria from adhering to the uroepithelial lining of the bladder wall, enabling them to be flushed out harmlessly.
Educational information only — never stop or change a prescribed medication without talking to your prescriber first.
Cranberry PREVENTS bacterial adhesion but does not cure an established, active systemic kidney or bladder infection (antibiotics may still be necessary for acute infection). High in oxalates; individuals with a history of calcium oxalate kidney stones should avoid excessive juice.
Evidence level: Strong
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