PDF) The effect of (L )Carnitine on weight loss in adults: A systematic review and meta analysis of randomized controlled trials 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 Assessing the antioxidant and metabolic effect of an alpha lipoic acid and acetyl L carnitine nutraceutical ScienceDirect Effect of chronic L carnitine supplementation on carnitine levels, oxidative stress and apoptotic markers in peripheral organs of adult Wistar rats ScienceDirect