http://www.supplementscombined.com/no2-core/

[DavidL Warren]

They are essential for more energy during workouts and they supplement protein for muscle mass. By eating enough good carbohydrates, your body will function well and you will have the energy you need to finish your workout.NO2 Core You must eat carbohydrates, if you want to build muscle. Carbs are the fuel that your body uses to power itself through exercise routines. When training consistently, you must take in two to three grams of carbohydrates per pound of weight.NO2 Core When trying to add muscle, eat an adequate amount of protein each day. Muscles are made from the building block of protein. If you don't eat enough, you will have a hard time getting more muscle mass.
http://www.supplementscombined.com/no2-core/