Quick Answer
Citrulline Malate Resistance Training Randomized Trial has evidence relevant to safety, limits, and clinician-discussion contexts, but conclusions should stay close to the cited sources. One representative finding is: The primary physiological effect of NO during exercise is vasodilation, leading to an increased supply of oxygen and energy substrates to muscle tissues [,].
Key Takeaways
- 01The primary physiological effect of NO during exercise is vasodilation, leading to an increased supply of oxygen and energy substrates to muscle tissues [,]. [Bayat Davoud (2025)]
- 02Most of the ergogenic properties of CIT supplements are attributed to LC’s role as an L-arginine precursor, which leads to increased L-arginine bioavailability and enhanced NO production. [Bayat Davoud (2025)]
- 03Only those individuals were allowed to participate in the study who were considered low risk by the American College of Sports Medicine [], were nonsmokers, had not used any ergogenic supplements for 8 weeks prior to enrollment, and had no orthopedic problems or metabolic disorders that could interfere with the outcome measures or full commitment to the study protocol. [Bayat Davoud (2025)]
- 041 1 2 3 4 L-Citrulline (LC) is a non-essential, non-proteinogenic amino acid that has gained popularity as a Nitric Oxide (NO) enhancer in sports nutrition []. [Bayat Davoud (2025)]
The current Migaku evidence database contains 2 reusable source documents for Citrulline Malate Resistance Training Randomized Trial. This answer focuses on safety, limits, and clinician-discussion contexts.
- The primary physiological effect of NO during exercise is vasodilation, leading to an increased supply of oxygen and energy substrates to muscle tissues [,]. [Bayat Davoud (2025); evidence level 2]
- Most of the ergogenic properties of CIT supplements are attributed to LC’s role as an L-arginine precursor, which leads to increased L-arginine bioavailability and enhanced NO production. [Bayat Davoud (2025); evidence level 2]
- Only those individuals were allowed to participate in the study who were considered low risk by the American College of Sports Medicine [], were nonsmokers, had not used any ergogenic supplements for 8 weeks prior to enrollment, and had no orthopedic problems or metabolic disorders that could interfere with the outcome measures or full commitment to the study protocol. [Bayat Davoud (2025); evidence level 2]
- 1 1 2 3 4 L-Citrulline (LC) is a non-essential, non-proteinogenic amino acid that has gained popularity as a Nitric Oxide (NO) enhancer in sports nutrition []. [Bayat Davoud (2025); evidence level 2]
- Although generally considered safe, their combined use with high-intensity training may increase the risk of exertional rhabdomyolysis and secondary liver or kidney injury. [Chowaniec P (2026); evidence level 4]
Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording.
This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.
Sources
- Changes in resistance training performance, rating of perceived exertion, and blood biomarkers after six weeks of supplementation with L-citrulline vs. L-citrulline DL-malate in resistance-trained men: a double-blind placebo-controlled trial
- Exercise-Induced Rhabdomyolysis With Supplements (Creatine, β-Alanine, Citrulline Malate, and β-Ecdysterone).