Vitamin for your weight

I have a friend who undergo in surgery procedure because of her weight and since she needs vitamins to loss weight because she has been gaining weight after her surgery. She asked me if I know some vitamins which help her to loss weight, and since I don´t have an idea, I told her that I will surf the net to find what she is looking for. I surfed the net this afternoon and I came to this site BariatricChoice.com which offer different kinds of huge variety of bariatric vitamins, minerals and supplements designed for the special health that you need to loss weight to people who has undergone in surgery likes my friend. What I like in their offer is they have a MONEY BACK GUARANTEE on all their products. So I called my friend and give the site of this vitamins she needs.