The most commonly used methods in dietary assessment include:
- 24-Hour Dietary Recalls: Participants recall all the foods and beverages they consumed in the past 24 hours. - Food Frequency Questionnaires (FFQs): Self-administered questionnaires that assess usual dietary patterns over a specific period. - Dietary Records or Diaries: Participants record everything they consume over a certain period, typically ranging from several days to weeks. - Biomarkers: Objective measures, such as blood or urine samples, provide biochemical evidence of nutrient intake.
