Hi
I have noticed that on the GI diet baked potatoes are a no no but you can have new potatoes. Must be something to do with the baking process increases the GI and carbs they do go a bit sweeter when they are baked dont they so maybe it has something to do with natural sugars/ starch? Also the older the spud the more starch , have you notice how the white starchy stains on the chopping board and hands are worse with older potatoes than if you chop up new pots?
Anyway just rambling on now so I hope some of it helped.LOL