I would need more protein than that. A LOT more. Protein is where you really find out what your stomach can tolerate, but I do fine with egg salad sandwiches which are available nearly everywhere (as long as you don't think too hard about what's in them ) or as Muirenn suggested, if you boil eggs and leave them in their shells you can carry them in your pocket until you need them. Or you could try Perpetuem, or since I don't do soy or whey protein, when I'm running over three hours, I'll mix my own combination of HEED and Garden of Life protein powder. But it sounds like you just need more calories, more than anything.