I've read in Dr. Cordain's book that he does not advocate sweet potatoes but bananas are fine. Also I don't think Arthur de Vany is pro-banana or sweet potato. I'm not too sure if either are too starchy. Also de Vany doesn't really eat tubers or sugars when he works out, so he doesn't replace the sugars lost during exercise - its a form of intermittent fasting.
Basically I love sweet potatoes and bananas and I know (think) they're great for post workout but as with most paleo friendly foods it does not really matter how much you consume, e.g. meat, fish, vegetables and fish, so my question is what's your take on bananas and sweet potatoes?
Should we limit them to an occasional treat, keep them for workouts or are they good to go on a regular basis?