I love Karin’s answer. A student of research. Right on! To me the concept of going on a diet implies something that I am only going to do for a while, before returning to a different nutritional lifestyle. To be effective, one has to estabish a nutritional lifestyle that will be consistent for one’s lifetime, not just for a little while.
I don’t think that there are “good” foods and “bad” foods. I think that there are really healthy foods and not-so-healthy foods. Just eat the healthy foods most of the time. If you eat some not-so-healthy foods once in a while, big deal. It’s the most predominate habit that counts the most.