Combining Berberine and L Carnitine can be beneficial for weight management, metabolism, and overall health. Berberine may improve insulin sensitivity, lower blood sugar, and support weight loss, while L carnitine helps the body use iSatori L Carnitine LS3 3000, Triple Blend Liquid L Carnitine Supplement, with Acetyl & Tartrate, Stimulant Free Energy L Carnitine for Weight Loss: My Honest Experience & How It Burns Fat The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link Prolab L Carnitine 500mg Boost Metabolism & Burn Fat for Fuel Keto Weight Loss Prolab Nutrition