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.
Jack LaLanneOn one of my birthdays I did 1,000 chin-ups and 1,000 push-ups. For my 70th birthday I towed 70 boats with 70 people in it, my feet and hands tied-my hands were in handcuffs, my feet were tied together-and I towed these boats a mile-and-a-half in Long Beach Harbor. For my 93rd birthday I'm going to tow my wife across the bathtub.
Jack LaLanne