Background:
I'm an economics major and am doing a research about the allocation of
food among parents and kids within a household.

My hypothesis, based on maximization of household wealth, suggests
that personal discount rate is inversely related with children's share
of food over parents' share of food.

In poor countries, for example, political instability and mortality
give a high discount rate, and children, therefore, consume less food
relative to parents.

Question:
I need some data (prob from WHO, etc) about the calorie intake,
protein intake, or other measure of food consumption among parents and
kids within a housewhold in poor and rich countries. I'd also like to
know the mortality rates at different ages in these counties.

Please help. Many thanks.