One study recorded food intake and food preferences of patients by
offering them a buffet-type meal which provided a large diversity in
protein, lipid, and carbohydrate sources in order to facilitate the
detection of macronutrient preferences. After the record, the
authors calculated macronutrients intake by Canadian Nutrient File
(Canadian Nutrient File. Tape and User’s Guide. no. 58-42-1997EMRed.
Health and Welfare Canada: Ottawa, 1997) or information on
food labels. Another paper