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Compare supplements

Put up to three ingredients next to each other. See where the evidence, dosing, timing, and tradeoffs differ.

Supplement 1Supplement 2Supplement 3

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Evidence

Moderate evidence

Common protocol36–72 mg/day PACs in standardized products——

Protocols mapped

1 goal-specific

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Timing

Daily with water

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Expected effect

Study-specific; commonly several weeks

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Primary uses

Recurrent-UTI prevention researchUrinary healthProanthocyanidins

Watch for

Stomach upset · Added sugar in juice

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