Mikey, I would advise trying several different types, high, moderate and low glycemic index, and see which type gives you the most energy. Also note how fast you go back into ketosis after you finish your workout on different carbs. It is going to vary from person to person. I personally do best on very low GI carbs, plain yogart, oatmeal mixed with nat peanut butter, but other people do great on high gi sugars.