So this is an interesting problem. It's my second go around with paleo, and both times I've had a difficult time getting/keeping erections with my girlfriend. The times I've been off paleo, no problems whatsoever. A google search yielded no results. Has anyone heard of this before? First thought is not enough carbs, but I'm not quite sure how to get 200-300 grams of carbs per day on paleo. Could an actual grain requirement be an, albeit rare, possibility?