as far as dairy, it has something to do with how the sugars are broke down. the same with grain. one, it can deplete energy and two, cancer cells thrive on the sugars.

however, i say if something works for you, stick with it. (from what i've been seeing, yougert is nothing new to greyhound owners...lol)

there are times when benifits out weigh the bad. goodluck!