Our data is obtained from USDA SR17 database, and shows carbs by difference (i.e. fiber subtracted)

I suspect the Atkins number is subtracting the fiber twice, instead of once, if they took the USDA carb count, and then subtracted the USDA listed fiber. That's clearly they case if you add the calories they listed for avocado.

As to difference between the PECC today, it was due to a bug reported earler today, and now should be fixed.

In any case, to find out if the carbs have already been subtracted, just compare the total calories to the result of this fomula:

(grams of carbs X 4) + (grams of protein x 4) + (grams of fat x 9)

If the result matches the declared calories, then they label has already subtracted the fiber. If not, then the label may have listed the total carbs (carbs and fiber)

That's just things add up, math-wise.

Wa'il