Participants will attend their first study visit at a clinic at UBC. They will be randomized to the cranberry capsule or placebo. Participants will be instructed to consume the assigned supplement for the next 12 months. A calendar will be provided to record compliance and recurrent UTI. Participants will also record any side effects. They will be phoned each month to encourage participation and adherence. At 8 weeks and 6 months, they will be asked to return to the clinic to complete a midline questionnaire which will ask about any recurrent UTIs experienced. More supplements will be provided at their 6-month visit. At 12 months, participants will return to the clinic to complete an endline questionnaire. They will return any leftover supplements, calendar and side effect diary. If participants withdraw from the study, they will still be encouraged to return at 12 months to complete the survey to allow for intent-to-treat analysis.