By Lt. Col. Twyla Leigh
U.S. Army Public Health Command
It’s been a long day at the office. Caffeine and sugar are calling your name. Before you head for a vending machine, consider that the additional 140 calories from a 12-ounce can of soda and 220 calories from a candy bar, if consumed on most work days, will create a weight gain of 25 pounds per year.