Carbohydrate part II. The cereal debate.   Over the last 20'000 or so years, in all probability, man would have unknowingly bred dogs that do well on a relatively high carbohydrate diet. This idea is based on the premise that carbohydrates being the lowest value food in most societies are the most likely of all to be spared for feeding dogs. Therefore dogs that prospered on a high carb diet would have had better survival and so breeding potential. This was not a matter of evolving new abiliti