Earlier quoted context omitted.
Just as a counterpoint, in Europe the requirement is to specify nutrition data per 100 g of "usable" product. Some products are e.g. intended to be added to water before consumption, then the nutrition is for that final form, not for the concentrate that you actually buy. But it's really practical, it makes it dead easy to e.g. compare calories, sugar, fat and so on between e.g. milk and apple sauce (to take random e…
This seems to make a lot of sense since there are no calories or nutrients in water.
Sometimes it is used for milk too
Example:
"Calories for final product using 2% milk"
And it's really confusing for someone like me who is tracking calories
Iirc it was even worse because it was for a bag of dehydrated potatoes that used a mix of water and milk on the recipe.
Another example was noodles, it is sometimes said for 100ml of finished product (at this point tell me the calories for the entirety of the pack or 100gr of it)
I prefer dry weight.