reunión de expertos sobre nutrición desarrollo humano y pobreza paho washington 14 15 octubre 2002 salud desafíos política pública carlos a monteiro carlosam usp br school of public health university sao paulo brasil nutrition transition concept and stages where are the developed developing countries worldwide trends in food availability predicted impact on nutritional status population obesity national wealth individual ses process changes physical socio cultural environme nt magnitude distribution related diseases risk factors dietary patterns energy nutrient requireme nts economy optimum for all moderatecereals pulses nuts f&v lean meat skimmed milk post industrial diabetes cvd cancer etc first among rich then shifting rapidly toward poor lowdeclining plant foods increasing animal products oil sugar salt processed mass consumption maternal child undernutrition mainly highcereals some vegetables fruits more agriculture famine spread very highone cereal based diets primitive fair highfruits seeds roots wild