> Your muscle repair would come primarily from protein. This is a common misconception. Yes, muscles are made from protein, and so you need additional protein

> Your muscle repair would come primarily from protein. This is a common misconception. Yes, muscles are made from protein, and so you need additional protein to provide new "building blocks". But the process of muscle repair uses a far greater amount of glucose to actually do the work of assembly. Estimates are generally that you need something like 10x as many calories from carbs/fats to build muscle, compared to the actual protein required. So no -- muscle repair actually comes primarily from glucose, if you're measuring calories. But the point is that you need both. If you eat plenty of protein but your blood sugar is low, the muscle growth/repair will be extremely slow, or just not happen at all. Also, your protocol is entirely about the workout. I'm talking about the 48h afterwards, when the growth actually occurs in response to the stresses incurred during the workout.