Side Effects The Life Raft Group 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) Application of L carnitine as nutritional supplement in veterinary medicine. Semantic Scholar 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