Relative validity of the Planetary Health Diet Index by comparison with usual nutrient intakes, plasma food consumption biomarkers, and adherence to the Mediterranean diet among European adolescents: the HELENA study

Leandro Teixeira Cacau, Giles Hanley‐Cook, Inge Huybrechts, Stefaan De Henauw, Mathilde Kersting, Marcela González‐Gross, Frédèric Gottrand, Marika Ferrari, Esther Nova, Manuel J. Castillo, Dénes Molnár, Kurt Widhalm, Odysseas Androutsos, Yannis Μanios, Peter Stehle, Carl Lachat, Dirce Maria Lobo Marchioni, Luís A. Moreno