NOW&ampreg; Carbo Gain is a 100% pure maltodextrin, an easily digestible complex carbohydrate derived from corn.&ampnbsp;Maltodextrin contains &ampquot;glucose polymers&ampquot;, linked sugar compounds that are easier for the body to assimilate and use.&ampnbsp;Glucose polymers are metabolized at a slow, steady rate that can help to sustain energy levels during endurance-oriented workouts and/or athletic events and support weight gain.&ampnbsp;Carbo Gain contains virtually no protein, fat or fiber and is a convenient source of energy for active individuals.*&ampnbsp;Look to NOW for all of your high quality sports supplement needs.