What you need to do is get that tape measure out, and start measuring that gut. Then you start working out and you start eating properly till that gut gets down close to it was when you were in your 20's. Then you'll find out what your weight should be.
“In order to run a great business, you must know that a bunch of really intrinsically unhappy people, that's not a recipe for success. Don't be anywhere you don't need to be; it's just like that.”