Cranberry (Supplement)

Herbal Supplements

Cranberry has a long history of traditional use and is one of the most widely studied herbal supplements for urinary tract health. Research suggests that cranberry's beneficial effects are largely attributed to proanthocyanidins (PACs), compounds that may help prevent certain bacteria from adhering to the walls of the urinary tract, potentially reducing the frequency of urinary tract infections in susceptible individuals. Studies also indicate that cranberry contains a rich profile of polyphenols and antioxidants that may support gut health by promoting a favorable balance of intestinal bacteria. Available in several standardized forms, including concentrated extracts like Cran-Max and Ellura, cranberry supplements offer a convenient alternative to juice, which often contains added sugars. While the evidence is promising, findings vary across studies, and ongoing research continues to clarify the scope of cranberry's potential benefits.

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What the research says

Common dosages

These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.

Form Dose range Frequency Studied for Source
Capsule 500–1,000 mg Daily General antioxidant support and urinary tract health Commonly used dose range in clinical and observational studies
Extract 36 mg Daily Urinary tract health — PAC (proanthocyanidin) standardized dose for UTI prevention Widely referenced in RCTs as the effective PAC threshold for anti-adhesion activity
Extract 200–500 mg Twice daily Urinary tract health — recurrent UTI prevention Common in clinical trials studying cranberry extract for UTI prophylaxis
Liquid 240–300 ml Daily Urinary tract health — UTI prevention via cranberry juice Dose used in multiple RCTs examining cranberry juice for UTI reduction
Powder 1–1.5 g Daily Gut health and antioxidant support Used in studies examining cranberry polyphenols and gut microbiota modulation

Common supplement forms

Cranberry extract (PACs) Cran-Max Ellura
Medical Disclaimer: Noyemi provides information from published research for educational purposes only. This content is not medical advice and does not replace consultation with a qualified healthcare provider. Always consult your doctor before starting, stopping, or changing any supplement regimen, especially if you take medications or have existing health conditions.