Yes, you can loose weight with hypnosis. People have been doing it for years. It's really not hard to do. You have to really want to lose weight but most of my clients do. Now some want to sit on the couch and eat fat foods and wait and see if that "hypnotism stuff" works.
The first thing you learn about hypnosis is it's not mind control, regardless of what you see on the net. Unless you want your mind to be controlled by yourself, to be laser focused on the issue at hand, like losing those extra pounds.
This is where hypnosis is most effective, is when you show up to your session with the mindset that " I'm going to do this and nothing, not even myself is going to stop me." You do your part, you allow your inner mind to be programmed with the most positive suggestions and images concerning your issue like weight loss. You "KNOW" it will work, not " I sure hope this works".
When you have that frame of mind nothing will stop you. You will find ways to be excited about working out or being active. You will find ways to stay focused on the new image of your body. All you need is a little help from a good hypnotist to find the inner treasures and do get rid of the negative programming.