Now consuming the equivalent of a pound of sugar at one time is a whole ‘nuther matter.
It's not the 16 calories in a teaspoon that's the problem. It's the 16 teaspoons in a 12 ounce can of regular cola that's the problem. 256 calories per can. . . times six or seven cans a day. That's about two extra meals of calories per day.
Not only that, it's fructose. . . the worst kind of sugar. Hardest to burn for energy. Easiest to turn in to fat.