Jul 03, 2020 · Acetyl-L-Carnitine (often shortened to ALCAR) is a form of l-carnitine that can be produced naturally within the body, primarily derived from l-carnitine. It is also known as the most bioavailable form of carnitine in the body. Whereas l-carnitine is famed for its ability to improve energy metabolism and aid in weight loss efforts, Acetyl-L .... Jun 11, 2021 · Taking acetyl-L-carnitine seems to improve symptoms in people with nerve pain caused by diabetes. Acetyl-L-carnitine seems to work best in people who have not had diabetes for a long time or who have poorly controlled type 2 diabetes. Also, doses of 1000 mg taken two or three times daily seems to work better than doses of 500 mg three times daily.. Carnitine is found almost everywhere in the body and plays a critical role in the conversion of food to energy. In fact, its primary function is to help cells break down fat. Because of this amino acid's role in metabolism, carnitine has been studied for its role in athletic performance, blood sugar levels, kidney function, cardiovascular. "/>Acetyl l carnitine