An interesting question recently occurred when a friend of mine and I were having a discussion. We were talking about what Judaism had to say about weight loss. Obviously, there are those people who do not need to loss weight (unfortunately I am not in that category). For those who do, however, one can make a strong argument that Judaism strongly supports it, or my friend argued, requires it.
The reason is it is Judaism talks about doing what you can to preserve a life, especially your own. So, if ones health would improve if s/he would lose some weight, then you could argue that Judaism requires it. Fortunately, there are all sorts of programs and ways to lose weight, and one can find these almost anywhere, such as lap band central florida.