"i was prescribed this and started it on 4/3/10. i started of at 250lbs...my highest weight ever after having a baby and not being able lose the weight. 8 weeks later i&#039;m at 225. 25 lbs. it is amazing to me especially since before i started it i barely ate to begin with and could not lose a single pound. the only real side effect i have are tension headaches...but i had that problem before it...it has just increased a little. sometimes i have a hard time falling asleep...but that&#039;s nothing new to me...i&#039;ve always been that way...but now i just have the energy to deal with getting less sleep. i love it. i&#039;m hoping to lose another 40 lbs getting ready to increase my workouts to do so!"