I got on the Alli weight loss supplement about 5 months ago and have lost nearly 40 pounds. I have never looked or felt better. Doc says blood pressure is 120/75 and my heart rate is a strong 75. I think Alli is not only safe bu effective. When I started my plan I looked around a lot for reviews and places to get the pills. I found SecretGut.com was very helpful. They have reviews on a few different products, but most importantly it talked about how safe Alli was, so I persoanlly didn't feel there was any risk when I started with the pills.