We bought a box of Eggo waffles yesterday. Today, I was looking at the nutrition facts.
[quote]
Serving Size:2
Calories per serving: 190
Calories per waffle: 90
[quote]
Where did the extra 10 calories come from? Two waffles should equal 180 calories, and a serving size is two waffles; therefore, a serving should equal 180 calories. But it doesn’t. Why? If I eat 2 waffles separately, as opposed to together as a serving, am I supposed to get 10 fewer calories? 
The “extra” 10 calories went to the bellhop.
I would guess that is a typo.
I’m inclined to be less charitable to whoever came up with the figures on the package of 4 sausages I recently bought, which claimed that there were 6 servings in the package.
The US standards for nutrition info allow for rounding, and most manufacturers will round to the nearest 10. What you probably have is something like the following:
1 waffle: 93 calories (rounds down to 90)
2 waffles: 186 calories (rounds up to 190)
Ah, cunning. I suppose the waffles will vary slightly so it is sensible to round the figures
i will tell you something more interesting. a packet of splenda says zero calories. and 200 packets are then also zero. yet a pack of lets say 100 g net weight is basically 100g of filler ( maltodextrin ) which is carb at 4calorie/gram thus a pack has like 400 calories 
not zero
they just don’t care about accuracy thats all, they round calories down.
what are the breakdown of grams of carbs, protein, and fat?
1 gram of carb = 4 calories
1 gram of protein = 4 calories
1 gram of fat = 9 calories
Add those up based on the number of grams and see if it is a typo or not.
Yeah, my popcorn is like that, too. The popped serving has more calories than the unpopped. That’s really weird.
Well, it’s obvious. When you pop it, you’re transferring energy to the kernels…
It’s just rounding. Everybody does it. You did it, too. Dextrin carbohydrates come at 4.11 Calories per gram. And the FDA requires that caloric content be rounded to the nearest 5 Calories (for total value less than 50 Calories). If you think they’re breaking FDA regulations, you should back it up with something.
Hey! Le’ go of my Eggo!
The extra 10 calories are from the crumbs in the bottom of the toaster.
Ever heard “2+2=5 for large values of 2”? It’s not a joke. Rounding results in strange results like that.
Yeah, I remember as a kid reading cereal boxes and wondering why milk had more calories when added to some kinds of cereal than to others. Rounding!
Achernar, i didn’t imply they were breaking any regulations.
On a tangential topic, in Physics and Chemistry, 4 * 3 = 10, while 4.0 * 3.0 = 12.
