Too many calories can lead to many problems

Not long ago my husband showed up with a sandwich for lunch that he bought at a local supermarket. I thought it was going to be our usual: turkey and provolone with lettuce on a hard roll, always plenty for both of us.  At $6.50, how could you go wrong?

This time the sandwich was different. It now cost $9.50 and was piled high with turkey and cheese on a roll that was much bigger than what we were used to. In short, it was awful—enough meat and cheese for four people on squishy bread that tasted more like a morning sweet roll. But the bigger serving probably looked like a good deal to a...