A.: I’m tempted to say that you should wait an hour after having a tunafish sandwich . . . but it really depends. It depends on how much you eat, how vigorously you plan to exercise, and how quickly your metabolism works. In short, you need to really know your body.
Some people feel more comfortable on a full stomach than others. Some have better blood metabolism than others. Suffice it to say, though, that if you’ve gorged yourself to the point of nausea, that’s not the time to pump more iron than Arnold Schwartzenegger would.
If you don’t know how to read your body’s signals, it’s wise to avoid high-intensity activity right after eating. That said, going for a light walk is usually fine—and can help enhance the digestive process.
Whatever you eat, though, do NOT exercise right after drinking alcoholic beverages.