Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window The Role of L Carnitine in Distance Athletes The effects of L carnitine in children with kidney failure undergoing dialysis: a systematic review Pediatric Nephrology Springer Nature Link Beneficial effects of l carnitine supplementation for weight management in overweight and obese adults: An updated systematic review and dose response meta analysis of randomized controlled trials ScienceDirect L Carnitine for Weight Loss I how to take & side effects l Carnitine and synbiotic co supplementation: beneficial effects on metabolic endotoxemia, meta inflammation, and oxidative stress biomarkers in obese patients: a double blind, randomized, controlled clinical trial Food & Function (RSC Publishing)