White Bread And Deformity
This article from the BBC discusses what happens when you feed white bread to ducks and geese. It says that while a common past time it is very unhealthy for the wild birds to eat such white bread! It actually says that birds that have eaten white bread like that have been found to become deformed! If eating white bread and food like this can cause wild animals to become deformed what did not also do the same thing to human beings?
Humans need to take care of their Nutrition in order to not suffer physiological effects that come from eating poorly. When animals are fed in violation their dietary only negative results follow. For humans an integrative nutrition approach that uses biologically appropriate foods and good exercise and mental awareness is the key.