I have used this in the past (13 years ago) after I had my son and it helped me lose weight but I did watch what I ate and had a healthy exercise regimen. I am trying them again because i have had another child, not because i quit taking them and i gained the weight back like alot of people say diet pills do. I have taken them for 13 days now and I watch what I eat, walk 15-30 min a day on my treadmill, that's the only change I have made to my normal routine. It says take 2 capsules twice daily I take 2 in the morning and 1 about 2pm and I have already lost 7.4 lbs. It gives me energy but doesn't make my heart feel like it's gonna beat out of my chest or give me the shakes like some others do. The only reason I didn't leave 5 stars (wish I could leave 4.5 stars) is just because you need to take 4 a day, it would be great to have to only take 1 or 2 a day max. I really don't like having to take medicine, that's my ONLY complaint.