Evidence-Based Benefits
- Training volume — Pérez-Guisado & Jakeman (2010) found 8 g citrulline malate increased upper-body reps to failure by 52.9% and reduced muscle soreness by 40% at 24 and 48 hours post-exercise
- Nitric oxide production — citrulline raises plasma arginine and NO levels more effectively than equivalent doses of L-arginine due to bypassing hepatic first-pass metabolism (Schwedhelm et al., 2008)
- Aerobic performance — Suzuki et al. (2016) showed citrulline supplementation improved cycling time trial performance and increased plasma NO metabolites
- Muscle soreness reduction — multiple RCTs confirm 30-40% reduction in delayed-onset muscle soreness (DOMS) with pre-exercise citrulline malate dosing