Well, both Perlmutter and Davis say to avoid all kinds of grains at all costs and Hyman says to avoid all kinds of dairy products (butter, yoghurt, milk) with a possible exception of white cheese and they are all based on science. So I propose based on science. My claims about the restaurants and beverages are based on economic/profitability, restaurants and supermarkets offer decent priced and good tasting meal at the expense of health. If I'm able to get cheap and good tasting chicken at a fried chicken restaurant, I do it at the expense of health, need no science to see that.