Comparison of dietary assessment methods in a Southern French population: use of weighed records, estimated-diet records and a food-frequency questionnaire

The FFQ provides a reasonably reliable measure of macronutrient intake and a good measure of micronutrients intake when compared with the data in the literature and can be achieved by adding further questions on foods which are insufficiently covered.

Abstract

Portion estimation using the set of photographs was validated by the correlation between S4 and PETRA for both nutrients and foods. The FFQ provides a reasonably reliable measure of macronutrient intake and a good measure of micronutrient intake when compared with the data in the literature. It performs less well for food intake. Better results can be achieved for FFQ: (i) by using the set of photographs instead of standard portions and (ii) by adding further questions on foods which are insufficiently covered.