I think that's more academically interesting than it is practically useful. Some of the foods I eat may have calorie counts that are off by 20 or 30 percent?

I think that's more academically interesting than it is practically useful. Some of the foods I eat may have calorie counts that are off by 20 or 30 percent? That's noise. Being on an 1100 diet that you think is 1400 (or vice versa) doesn't matter that much. What matters is that it isn't 3500--something that can easily happen by accident if you don't pay attention.