The intestinal microbial metabolite acetyl l carnitine improves gut inflammation and immune homeostasis via CADM2 ScienceDirect L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Chronic acetyl L carnitine treatment alleviates behavioral deficits and neuroinflammation through enhancing microbiota derived SCFA in valproate model of autism ScienceDirect 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 The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link