Proanthocyanidin A (PAC-A) prevents E. coli from adhering to urinary tract epithelium. 36mg PAC-A/day (A-type linkage — NOT B-type found in grape seed) is the therapeutic dose. Equivalent to ~240mL unsweetened cranberry juice. CranMax® and Cran-Max® are standardized extracts. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.