Got into some back and forth between the carnivores and the vegans, both of which considers the other to be completely wrong, with studies to back up their positions, when I realized that neither I nor any one in my family (with one exception, a nephew with a peanut allergy) has any problems with any kinds of food. We don't get fat, and we don't have allergies. A little depression here and there, but we are very fortunate in this regard. Now every second person is obese, or diabetic, or depressed, or has heart disease. There are skin rashes and arthritis and cancers and irritable bowels. Lactose intolerance, nightshade reactions, and on and on. Any theories why some people can't eat anything and others can eat everything?