Potential underreporting of energy intake in the Ontario Health Survey and its relationship with nutrient and food intakes.

Abstract

This study investigated potential underreporting of energy intake in the 1990 Ontario Health Survey (OHS). Underreporting was higher in overweight individuals, Asian-born individuals, and respondents from urban areas. Intakes of underreporters were slightly closer to current dietary guidelines (less fat, more fruit and vegetables, fewer sweets). These results underline that caution is warranted when interpreting the association of dietary data with health outcomes.