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

Insufficient evidence

Common protocol500–1,500 mg/day used on labels; no established effective dose——

Protocols mapped

1 goal-specific

—

Timing

30–60 minutes before exercise on product labels

—

Expected effect

Study-specific; commonly several weeks

—

Primary uses

Blood-flow claimsPain researchPre-workout use

Watch for

Nausea · Diarrhea

—