The proanthocyanide (PAC) found in cranberries inhibit the fimbrial adhesion of bacteria,
including E.coli, to the urinary tract epithelium and therefore subsequent reproduction
required for infection.

Vitamin C:

Vitamin C has been shown to be effective in the prevention and self-care treatment
of urinary-tract infections. The mechanism of action is probably similar to that of
cranberry juice; vitamin C also acidifies the urine.

Zinc:

Zinc in our immune system could help the development of new non-antibiotic treatment
strategies for bacterial diseases, such as urinary tract infections (UTIs).