Food Frequency Questionnaire Components

A Food Frequency Questionnaire (FFQ) is a tool used to assess a person's typical dietary intake over a specified period, often the past year. Its primary goal is to determine how often specific foods or food groups are consumed.

Key Elements of an FFQ

FFQs are structured to gather information efficiently. They generally include:

• A List of Foods: This comprises specific food items or common food groups relevant to the population being studied.
• Frequency-of-Use (Consumption) Response Categories: For each food item listed, respondents select how often they consume it. These categories typically range from daily or weekly consumption to less frequent patterns (e.g., monthly, yearly, or never). Examples include "3-5 times per day", "1-2 times per week", or "less than once a month".

The combination of a specific food list and predefined frequency-of-consumption categories allows researchers to estimate dietary patterns and nutrient intake.