I tried york fat burner supplements for a while and heres the thing. They will always say "use alongside a healthy diet and active lifestyle" well guess what. If you have a healthy diet and active lifestyle you will lose weight ^^
I lost 1 - 2 pounds a week while I was on them, and 1 - 2 pounds a week while I was off them. And at anything from 15 - 30 pounds for a months supply, really I think they are a waste.
As for appetite suppresent, as long as you are eating a small meal 6 times a day with plenty of whole grain, fiber and protein in each meal your appetite should work normally, you should find you're only getting hungry 3 or 4 hours after each meal which means its time to eat again.
I have learned that natural trumps man made every single time.