It's not possible for something amoral, like a food, to be good or evil, which are moral judgments. This leads to all sorts of problems like viewing eating meat as "murder," fascist food policies, or eating disorders. If someone makes moral judgments about food I can tell they don't have the best interests of humans in mind.
It can only be good or bad in relation to a moral being- a human. We can say that sugar isn't good for humans and humans who promote in are morally suspect, but how can a class of edible crystalline substances actually be evil? They can't.
Since I was a raw vegan before, I can have lots of experience with people who believe some foods are good and others evil, often from a ridiculously unscientific point of view. They are not healthy people.
Paleo is about you feeling good. It's not a good idea to eat foods that make you feel bad in the end. The foods aren't evil, it's just a silly thing to do and I'm glad paleo helped me to stop harming myself. If research showed that wheat bran was teh best food ever, it wouldn't matter because I know it makes me feel like crap.
