A new therapeutic approach to treating obesity uses a naturally occurring hormone. The best news is that the chemical comes from our own bodies, so there would be no nasty side effects, and from reading this report it looks like it really works:
Boosting oxyntomodulin, limits appetite and raises activity levels at the same time – leading to speedy but healthy weight loss rates, a UK study suggests. The hormone tells us we are full after a meal, but the obese have less of it. (more)