Why does the Nutrition Facts panel on my bread say one slice has 3 grams of fiber and 2 slices has 5 grams the math doesnt seem correct?
One of the FDA regulations is that all values listed under Nutrition Facts, if they are other than a whole number, must be rounded. Rounding rules are set forth in the labeling laws and dictate what manufacturers must report (to the nearest half, nearest whole number, etc). As an example, if the fiber in one slice is actually 2.70, this number, since it is closer to 3 than 2, must be rounded to 3. If the fiber in 2 slices is 2.70 + 2.70 (equaling 5.40), the 5.40, since it is closer to 5 than 6, must be rounded to 5. While this method of calculation can occasionally be confusing, the presumed logic is that it is easier for consumers to mentally add or subtract rounded numbers than numbers carried out to one or two decimal points. Per FDA regulations, you will find this same reporting criteria used on all Nutrition Facts panels on all products.
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