Biomarker-based validity of a food frequency questionnaire estimating intake in Brazilian children and adolescents

E. Hillesheim, R.B.D. Toffano, T.T.D. Barros, R.G. Salomão, M.G. Mathias, C.D.A. Coelho-Landell, M.O.R.D.V. Almada, J.M. Camarneiro, J.S. Camelo-Junior, F.D.V. Ued, E. Campos-Gimenez, K. Redeuil, M.P. Giner, F.-P. Martin, I. Montoliu, S. Moco, J. Kaput, J.P. Monteiro

Research output: Contribution to JournalArticleAcademicpeer-review


© 2020, © 2020 Taylor & Francis Group, LLC.This study evaluated the validity of nutrient and food group intakes estimated by an FFQ against biomarkers. A 71-item semiquantitative FFQ was administered to 210 Brazilian children and adolescents aged 9–13 years. Intakes were correlated with biomarkers in plasma and red blood cells. Correlations between nutrients and their biomarkers were presented for animal protein, myristic acid (C14:0), EPA, DHA, β-carotene, folate, and vitamins B3, B5 and B6. Food groups and biomarkers were correlated as follows: fish products with EPA and DHA; milk and dairy with C14:0, pyridoxal 5'-phosphate and vitamin B12; total vegetables and dark green and orange vegetables with β-carotene; 5-methyltetrahydrofolate with green vegetables; and flour products with para-aminobenzoylglutamic acid. This FFQ is a valid tool for ranking Brazilian children and adolescents according to their intake of several nutrients and food groups.
Original languageEnglish
Pages (from-to)1-12
JournalInternational Journal of Food Sciences and Nutrition
Issue number2
Publication statusPublished - 2020
Externally publishedYes


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