"i started 15 months ago on phentermine. i originally weighed 312lbs and had gastric bypass surgery 3/98. i lost 162lbs and felt great.over the past 8 years,i managed to put 50lbs back on.not hard to do when your eating junk. the mg were increased after a few months to 30mg and then to 37.5.to date i have lost 50lbs but it worries me to see so much weight loss in so little time from some of you.  i am on a food plan that my doctor set up for me.  she gave me a list of great foods, good foods and if your going to eat these foods, dont do it often.lol. i want to keep it off and be able to eat like a real person.i know if i dont eat because i want to lose it fast, for me,i will gain it back.i eat 5-6 meals a day and it works."