Absolutely nothing appeared to be working. Not working out, not diets, not bike rides or long walks... only a strict coffee diet started peeling them off. And I wouldn't recommend this to anyone. So much caffeine daily is not good for you! I'll drink coffee from when I first wake until like 3pm to keep me going. Then the peeing, bladder and prostate issues.
I'd be happy if it were just a few pounds, and I would also recommend it! So long as not over 70 or so as you don't wanna mess with the prostate. But if someone drinks coffee, it's actually easy to "overdo" it and stay away from food that way. It is NOT the way to go about dieting, but it does work, or did for me. It's probably similar to the other fads that sell that turn out to be little more than just caffeine or speed pills of some kind. And you won't find many out there recommending doing this. But the caffeine and avoiding most foods did work for me, better or worse.