 And there might be a little carbohydrate in it in the form of glycoproteins, sugar proteins, or stored glycogen. Your body will store sugar in your muscles. If you go through periods of fasting or you don't eat, your body's going to still need a little bit of sugar. It'll take it out of the stored sugar in the form of glycogen that's in your liver, that's in your muscles. So if you eat a roast, you're going to get a little bit of all of that, but mostly what you're going to get