I have been trying over 3 years to lose 50lbs. I am 5'3 and 4 months ago weighed 191 due to medications. My knees began to swell and my doctor put me in a knee brace and I was on crutches. I was having all kinds of medical problems. My blood pressure was 192/145. I was at stroke stage. Today after trying all types of diets and failing, I weigh 149lbs. I have been taking Alli for 4 months. Not only am I suprised, my doctors are very impressed and proud of me and so am I. Alli taught me what to eat and how much to eat by the side effects if I eat wrong. hurray for a great product.