For patients on My 600-lb Life, change begins with Dr. Younan Nowrazadan. While, of course, the change must also come from within, the renowned weight loss surgeon — known affectionately as “Dr. Now” to his patients and fans alike — offers a pre-weight loss operation diet plan that has gotten people all over the country on the right path for a major and necessary life change.As fans of the show know, people travel to Houston from all over to see Dr. Now and begin to change their lives, and — without fail — the first step on that journey is Dr. Now’s tested-and-true diet plan.