Confidence level
Emerging evidence
21 studies
Tongkat Ali (Eurycoma Longifolia)
Last reviewed: 4/3/2026
Absorption
✦Take with food to reduce gastrointestinal discomfort. Most clinical trials used standardized hot-water root extract. Morning dosing is common in studies. Avoid products without third-party testing.
Daily Dose
⚖
Common dose: 200-400 mg/day standardized water extract
RDA: No established RDA
Upper limit: 1200 mg/day (EFSA-derived)
Best form: Standardized hot-water root extract (100:1 or 200:1)
Timing: Morning, with food
Most RCTs used 200 mg/day. Not recommended during pregnancy or lactation.