It’s rounded to the nearest multiple of 10; it could be up to 5 (exclusively), and could still be listed as 0. It’s why so many lower-calorie products are listed with a zero-calorie serving size in the US. I’m not sure about the specifics of regulations — if any exist — on selecting serving sizes; this particular example feels a little fishy to me.
Avocado oil should have 884 kcal per 100g, therefore one serving of 0.25g would be 2.21 kcal. Why is that allowed to be rounded to zero?
Because it is 0g fat
It’s rounded to the nearest multiple of 10; it could be up to 5 (exclusively), and could still be listed as 0. It’s why so many lower-calorie products are listed with a zero-calorie serving size in the US. I’m not sure about the specifics of regulations — if any exist — on selecting serving sizes; this particular example feels a little fishy to me.