Often bread in store says it has 0g fiber per serving (1 slice). How is that possible? Doesn’t the basic ingredients of bread have fiber?
In: Chemistry
White flour basically has 0 fibers. Ok, they have about 2g per 100 g, but a slice of bread might be made of ~50gr of flour, which mean it has around 1 g of fiber per slice.
If they add cornstarch it will have even less fiber per slice, since cornstarch has 1g fiber/100g. So as it has <1g per slice, manufacturer just say that it has 0g fiber to simplify (see also Tic Tacs having 0 calories despite being literally sugar).
A particularly low fiber slice of white bread (1 serving per nutrition facts) can have under .5g of fiber in it.
As such, it gets rounded down to 0 per FDA rounding rules.
This is the same thing that allows tic-tacs to show 0 sugar and 0 calories on the nutrition label despite *being literally just sugar and binders.*
[https://www.recipal.com/blog/labeling-rules-and-guidelines/fda-us-nutrition-label-rounding-rules](https://www.recipal.com/blog/labeling-rules-and-guidelines/fda-us-nutrition-label-rounding-rules)
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