A Glucose Disposal Agent's (GDA's) primary function is to decrease the amount of insulin secreted by the body when consuming carbohydrate-rich meals. In a way, it acts as insulin, which shuttles glucose to muscle cells. Because of this, less actual insulin is needed in the body.
Ingredients in Control are shown, in combination, to help decrease fat gain and increase lean muscle gain (improve body composition), and allow you to eat more carbs (aid in performance) while limiting the amount of them stored as fat. Take a look at the ingredient list for exact formulas, amounts and explanations including the science behind them.