Side by side

Compare supplements

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

Supplement 1Supplement 2Supplement 3

Measure

Add a supplement

Evidence

Limited evidence

Common protocol75–200 mg/day standardized bark extract in older trials——

Protocols mapped

1 goal-specific

—

Timing

Once or divided with food

—

Expected effect

Study-specific; commonly several weeks

—

Primary uses

BPH symptom researchUrinary-flow researchProstate-health claims

Watch for

Nausea · Stomach discomfort

—