Off topic - pH to prevent UTIs?

[Guest guest]

Hi, all - I have a question. My friend, who consistently gets 1-2

urinary tract infections each year, is searching for a preventitive

measure other than the stadards suggested by the MDs (which she already

does-cranberry juice, don't hold a full bladder, etc.). I was wondering

if altering her body's pH and making it more acidic (through diet or

large intake of vitamin C) once per week could kill off any growth of

the offending bacteria in her urinary tract. Any ideas? Thanks, N