I read somewhere that the liver stores about 500 grams of Carbs, and that these carbs have to be fully depleted before one can enter ketosis? Also that if the liver does not have it's full amount of glucose stored, that any carbs eaten, be it low or high GI, will go twoards filling those liver stores first? If one is eating say 100 carbs per day, wouldnt that put your liver into a state of being somewhat carb depleted? and as long as you continued to eat 100 or less carbs per day, and 500 calories less than your maintenance amount of calories, wouldn't your body use these carbs to replenish your liver, and utilize stored fat as an alternate energy source? Keeep in mind that cardio would be done about 4 times a week.