Supplement of the week: L Carnitine!, This one doesnt just boost fat metabolismit can also improve recovery, endurance, and even brain function. If youre serious about performance and longevity, L Carnitine: What Is It, When To Take It, and More Knowledge Bioway Organic L Carnitine Before or After Workout Which Is Better for Fat Loss ? Still confused about L Carnitine? , In this reel, he explains how Muscle Food L Carnitine works inside your body., A naturally occurring amino acid that helps convert stored fat into usable energy.