"update i started phentermine 1 month ago and have gone down from 250lbs to 229lbs. i exercise 3-4 times a week for an hr usually 25min of t25 and 35 mins or more walking/running my cardio has gotten much better since i started and i can admit i think i&#039;ve become a workout junky. if i don&#039;t exercise for a day or two i feel guilty. anyhow i&#039;ve also changed my diet completely. i&#039;m on the low carbs diet and it is&#039;nt so bad one cheat day which is sunday and i count calories also i still eat bread but only 100% wheat bread hopefully once i reach my goal weight which is 139lbs i can keep my exercise and weight."