Vitamin D for Bladder Infection
Evidence-Based Natural Remedy Guide
Effectiveness
Type
supplement
Sources
1 cited
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How Vitamin D Helps with Bladder Infection
Vitamin D stimulates production of cathelicidin, an antimicrobial peptide in the bladder lining that helps fight off bacterial infections. Deficiency increases UTI susceptibility.
🔬 What the Research Says
A 2020 study in BMC Infectious Diseases found vitamin D deficiency was significantly associated with increased UTI risk, and supplementation improved immune defense in the urinary tract.
[1] Vitamin D deficiency and urinary tract infections — BMC Infectious Diseases (2020)
📋 How to Use
Take vitamin D3 supplement daily with a meal containing fat for best absorption. Get levels tested - many people are deficient.
💊 Recommended Dosage
1000-4000 IU vitamin D3 daily, or as directed by blood test results.
⚠️ Side Effects & Cautions
Safe at recommended doses. Excessive intake can cause hypercalcemia. Get levels tested periodically.
🛒 Where to Buy Vitamin D
NatureWise Vitamin D3 5000 IU
★★★★★ 4.8 · $10-15
Other Natural Remedies for Bladder Infection
Other Conditions Vitamin D Helps
📚 Sources
- Vitamin D deficiency and urinary tract infections — BMC Infectious Diseases (2020)
Last reviewed: February 2026 · Medical disclaimer applies
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