L-Carnitineand Energy Crashes.
Evidence gradeC
ImpactSmall
Confidencemedium
Imported rating. This grade comes from SuppCo and has not been independently reviewed. It describes research, not a product, and it is not medical advice.
The rating
- Direction
- Favourable
- Rated by
- SuppCo
- Observed
- 28 September 2026
Studies behind it
Effects of L-Carnitine Intake on Exercise-Induced Muscle Damage and Oxidative Stress: A Narrative Scoping ReviewAlberto Caballero-García · Nutrients2023Effect of L-carnitine on submaximal exercise metabolism after depletion of muscle glycogen.J. Décombaz · Medicine and science in sports and exercise1993The bright and the dark sides of L-carnitine supplementation: a systematic reviewA. Sawicka · Journal of the International Society of Sports Nutrition2020