There has been done a raise about the annual family total income and also the annual family revenue "per capita" among three communities in the Vale do Ribeira, situated in South seaside part of S. Paulo State. The necessity of adapting the investigation method to the local living condition, in order to obtain data according to reality was emphasized. Two of them, Vila de Icapara and Pontal do Ribeira, have subsistence economy and their population depend on fishing and agriculture in their living the third one is composed of the Iguape's transient workers that live in an urbain center of Iguape. Also in these three communities a food survey has been done has been calculated the adequacy of nutrients and calories consumption among the families. It was calculated the Pearson's correlation coeficient among economical variants and adequacy of proteins and calories consumption, and the conclusions was the following: a) In the two communities, Vila de Icapara and Pontal do Ribeira, which have subsistence economy, there wasn't a correlation between the protein and calories consumption and the family economic level, b) In the Iguape's transient workers community, there was a positive correlation between the protein and calories consumption and the family economic level.
Socio-economic survey; Nutrients; Food survey
