Validity and Applicability of a Dietary Index Based on a Brief Food Group Propensity Questionnaire Representing the EAT-Lancet Planetary Health Diet
This study published in the The Journal of Nutrition aimed to develop a practical and concise index for evaluating relative adherence to the EAT-Lancet diet across large-scale multicountry surveys. The EAT-Lancet Consumption Frequency Index (ELFI), is a brief, practical tool to assess adherence to the EAT-Lancet diet in large surveys. https://doi.org/10.1016/j.tjnut.2025.06.018