Keeping a written food log has long been known to help dieters make sure they’re not over doing it, but it turns out a photo log can have the same effect. According to a University of Wisconsin at Madison researchers, dieters who took pictures of their meals right before they ate them made leaner, healthier food choices. You can do the same. In fact, you make it social by using your Smartphone to share your meals with other dieters online by forming your own online diet support group.