L Carnitine Injection: Benefits, Dosage And Risks L Carnitine Before and After Gym TikTok Acetyl L Carnitine HCl 300 mg Capsules Supports Brain Health Bayview Pharmacy When to Take L Carnitine for Optimal Training Benefits Transparent Labs Hyperthyroidism and Functional Medicine Guide Amy Myers MD AMMD If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.