Food Frequency Questionnaire (FFQ)

A Food Frequency Questionnaire (FFQ) is a research tool used to assess a person's dietary habits over a specific period, usually several months or a year. It consists of a list of foods and asks respondents how often they consume each item, ranging from "never" to "daily." By analyzing this information, researchers can estimate nutrient intake and understand dietary patterns, which helps in studying nutrition-related health issues. FFQs are particularly useful because they accommodate the wide variety of foods people eat and can be administered easily to large groups.