Also known as: Vaccinium macrocarpon, American Cranberry
Cranberry is a tart berry rich in proanthocyanidins (PACs) that is widely used to support urinary tract health. Research supports its role in preventing recurrent urinary tract infections by inhibiting bacterial adhesion to bladder walls.
Cranberry (Vaccinium macrocarpon) is a North American berry that has been used for centuries in traditional medicine, particularly for urinary and kidney complaints. Its primary bioactive compounds are A-type proanthocyanidins (PACs), which prevent Escherichia coli from adhering to uroepithelial cells, thereby reducing the risk of urinary tract infections. Multiple Cochrane reviews and randomized controlled trials have confirmed a modest but consistent preventive effect, especially in women with recurrent UTIs. Cranberry also contains high levels of antioxidants, including quercetin and vitamin C, contributing to its broader health-promoting properties.
A-type proanthocyanidins in cranberry inhibit the adhesion of E. coli to uroepithelial cells, reducing UTI recurrence by approximately 30% in susceptible women.
Cranberry is rich in polyphenols, quercetin, and vitamin C, which scavenge free radicals and may reduce oxidative stress markers.
Daily cranberry consumption has been associated with improvements in vascular function, including increased flow-mediated dilation and modest reductions in blood pressure.
Once or twice daily with water
Standardized to A-type proanthocyanidin content for consistent efficacy.
With a meal
Cranberry juice (unsweetened) at 240–480 ml daily is an alternative but higher in calories.
UTI prevention with guaranteed PAC content
Those who prefer a whole-food approach
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