The combination of rounding rules and freedom of serving size is just ridiculous. You can buy oil in the US that lists 0 fat and 0 calories per serving, because

The combination of rounding rules and freedom of serving size is just ridiculous. You can buy oil in the US that lists 0 fat and 0 calories per serving, because the serving size is like 1/4 tsp or something. The EU's mandatory labeling per 100 g avoids that kind of chicanery and makes things much easier to compare.