Oats have very different qualities to wheat. Oats attract water and form a sort of jellied mixture, gently clean their way through. Wheat does not absorb so much and stays more scratchy. Oat bran has much lower cals too and and overall oats whether bran or porridge have better Gi. But porridge oats have too much starch and sugar for this diet, tho ok on others eg South Beach or WW.