The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link The effect of l carnitine supplementation on mortality and clinical outcomes in ventilator dependent critically ill patients with obesity and COVID 19: Protocol for a randomized double blind placebo controlled trial ScienceDirect Amazon.com: Force Factor L Carnitine Liquid 3000mg, Maximum Strength Supplement to Support Fat Metabolism, Cellular Energy & Muscle Recovery, High Absorbing, Non GMO, Orange Flavor, 16 oz Bottle : Health & Household Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications The adverse effects of long term l carnitine supplementation on liver and kidney function in rats L Liu, D M Zhang, M X Wang, C Y Fan, F Zhou, S J Wang, L D Kong, 2015 L Carnitine Side Effects & Safety: A Complete Guide The Science of Good Health