"gives me some energy, but causes unwanted anxiety at uncomfortable times. i&#039;ve been on it since the 2/7/17 and haven&#039;t lost any weight. although i do eat less. i wake up several times during the night now as well. if i take it first thing in the morning it gives me horrible stomach issues, if i wait til lunch i&#039;m up all night. i take it with a snack around 10:00am. it&#039;s been almost a month and a half, we&#039;ll see."