Epidemiologists use various methods to measure dietary changes, including:
- Dietary Surveys: These involve collecting detailed dietary intake data from individuals using tools like food frequency questionnaires, 24-hour recalls, and food diaries. - Biomarkers: Blood, urine, and tissue samples can provide objective measures of nutrient intake and metabolism. - Ecological Studies: These examine dietary patterns across different populations and time periods to identify trends and associations with health outcomes.
