HealthWise® L-Choline Bitartrate contains 99% pure pharmaceutical grade L-Choline amino acid powder. NO more than 1% silica added as an excipient.The primary role of choline bitartrate is lipolysis, which encourages the use of fat over glucose as the body’s primary energy source. The bitartrate form of choline is easily absorbed. Endurance athletes may choose to use this form of choline to extend training.Every cell in the human body uses choline to build its outer membrane, which keeps it from being dissolved in the bloodstream.The bitartrate form of choline is easily absorbed by the body and used primarily as a fat metabolizer.