Benefits of L carnitine injections are aplenty! This injection is a great way to boost your energy levels, help with weight management, and even promote healthy heart function. Studies show that Effects of l carnitine supplementation on blood pressure: a systematic review and meta analysis of randomized controlled trials Journal of Human Hypertension Potential Adverse Effects of L Carnitine Marnys How L Carnitine Helps with Fat Metabolism L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage