Just like with grown ups, processed foods in generally aren't good for us. This is especially true for infants. There's no need to burden their developing bodies and brains with refined sugars, processed starches or anything synthetic. Over time we build up tolerance to junk food by slowly incorporating more of it from a young age through adolescence and onward through adult life. Instead of cultivating this ability to handle foods not meant for the human body, why not keep it simple and live off what nature provides?