[ksenzee]

Cereal bowl sizes vary wildly, to make it even more confusing. Mine hold two cups (~450ml). Some hold way more than that. Some hold less. Buy a new set of bowls and you might be affecting your entire household’s eating habits.

[WheatMillington]

You don't have to fill a bowl to the top with whatever you're eating lol

[ksenzee]

Well, no, but people do. The whole point of this thread is "people are bad at estimating quantity." If it looks the same size as it used to be, but in reality it's half again as big, that's going to have an effect.