GNC Acetyl L Carnitine 500Mg 60 Capsules (60 Servings) NOW, Acetyl L Carnitine Powder, 57 Servings, Cellular Energy Support Walmart.com Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Acetyl L carnitine is also known as ALC. It is used by some people with high blood sugar to help with cholesterol as well as nerve pain, such as tingling in their hands and feet. Others have used it Codeage Liposomal Acetyl L Carnitine+