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Benefits of Citrulline Malate

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

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

What the Research Says

Citrulline malate is one of the most evidence-backed pre-workout ingredients. The landmark Pérez-Guisado & Jakeman (2010) RCT in the Journal of Strength and Conditioning Research demonstrated dramatic improvements in resistance training performance and recovery. Mechanistically, citrulline bypasses hepatic arginase (unlike oral arginine), resulting in superior plasma arginine and NO elevation. The malate moiety may independently support aerobic metabolism by serving as a TCA cycle intermediate, though this mechanism is less thoroughly studied in isolation.

References

  1. (). Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness. Journal of Strength and Conditioning Research. DOI
  2. (). Pharmacokinetic and pharmacodynamic properties of oral L-citrulline and L-arginine. British Journal of Clinical Pharmacology. DOI
  3. (). Oral L-citrulline supplementation enhances cycling time trial performance. Journal of the International Society of Sports Nutrition. DOI