Effectiveness Rating for Arginine's Ability to Improve Running Performance

The effectiveness rating is a measure of how well arginine is able to improve running performance. The overall rating for this claim is 1 out of 3. There is little if any research to warrant the use of Arginine to improve running performance. Using Arginine to improve running performance will probably not yeild any positive results and is likely a waste of money.

Confidence Rating for Arginine's Ability to Improve Running Performance

The confidence rating is a mesure of how valid the effectiveness rating is. This rating is based on how many studies are included in the database on this topic.

There are 3 studies in the database on arginine; the confidence rating is 60. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating.

Arginine Dose to Improve Running Performance

Dosage Frequency Daily Total Effectiveness Rating of Dosage
10g 3x per day 30g


Title of Study
Effects of acute supplementation of L-arginine and nitrate on endurance and sprint performance in elite athletes
L-arginine does not improve biochemical and hormonal response in trained runners after 4 weeks of supplementation
The Effect of Arginine or Glycine Supplementation on Gastrointestinal Function, Muscle Injury, Serum Amino Acid Concentrations and Performance During a Marathon Run