Now, let's consider that each gram of sugar has 3.87 calories. Just the sugar from the 3 cokes amounts to 452.79 calories. This is really interesting because according to the "nutrition facts" on the can's label, the soda only contains 140 calories.JPG 3 x 140 = 420 calories.... but it still says it has 39 grams of sugar.... I don't really trust Coca-Cola, or their relationship with the FDA, so I'm going to stick with 452.79.  Food labels can be off by as much as 20% and still be FDA compliant.  I suspect that companies, especially those purporting a particular number of calories per serving, do this on purpose, but that may just be the cynic in me.