Cranberry for Bladder Infection
Evidence-Based Natural Remedy Guide
Effectiveness
Type
food
Sources
1 cited
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How Cranberry Helps with Bladder Infection
Cranberry proanthocyanidins (PACs) prevent E. coli from attaching to bladder walls, the primary mechanism of bladder infections. Most effective as prevention for recurrent infections.
🔬 What the Research Says
A 2023 Cochrane review of 50 trials (8,857 participants) confirmed cranberry products reduce UTI/bladder infection risk by 25-30%, with strongest evidence in women with recurrent infections.
[1] Cranberries for preventing urinary tract infections — Cochrane Database of Systematic Reviews (2023)
📋 How to Use
Take cranberry extract supplements standardized to 36mg PACs daily, or drink 8-16oz unsweetened cranberry juice. Start at first sign of symptoms and continue for prevention.
💊 Recommended Dosage
36mg PACs daily via supplements, or 8-16oz unsweetened cranberry juice daily.
⚠️ Side Effects & Cautions
Safe for most. May cause stomach upset at high doses. Interaction with warfarin possible.
🛒 Where to Buy Cranberry
AZO Cranberry Urinary Tract Health
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Other Natural Remedies for Bladder Infection
Other Conditions Cranberry Helps
📚 Sources
- Cranberries for preventing urinary tract infections — Cochrane Database of Systematic Reviews (2023)
Last reviewed: February 2026 · Medical disclaimer applies
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