Actually, there are TONS of studies that have documented the extremely positive effects of a high-protein diet on kids' ability to learn. A few years back a huge study was published in which they replaced whatever the kids were eating with a protein breakfast in which the only carbs were fruit or fruit juice.
Then they gave the kids another protein-centered snack at 10am.
They made no changes to the school lunch.
Behavior improved dramatically, teachers gushed about how focused their students were, and grades went up.
In this house I have NO problem getting Ben and Milo to eat protein for breakfast -- we lovingly refer to them as our atkins children because given spaghetti with meat sauce they will pick out the bits of meat and leave the rest.
It's much harder with Max who doesn't like eggs (I don't push that. I don't like them much either.) and doesn't like most kinds of meat. Maybe I should start making him bean and cheese burritos for breakfast
