Low bioavailability = no meaningful effect, Oral L carnitine has very low bioavailability., Most of it isnt absorbed, and even what is doesnt increase fat burning., ., ., ., ., #workout #malayalam Amazon.com: Lypo Spheric Acetyl L Carnitine 1,000 mg Acetyl L Carnitine & Essential Phospholipids Per Packet Liposome Encapsulated for Maximum Bioavailability 100% Non GMO (30 Individual Packets) : Health & Household Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health L carnitine is effective for both fat loss and athletic performance. However, oral L carnitine has lower bioavailability and can be harmful at high doses, so it should be avoided. , Even cardiologists Assessing the In Vitro and In Vivo Performance of L Carnitine Loaded Nanoparticles in Combating Obesity L Carnitine Linus Pauling Institute Oregon State University