A prospective investigation into the association between the gut microbiome composition and cognitive performance among healthy young adults.

"Declarations Ethics approval and consent to participateThe study was conducted in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of the University of Bonn. Informed consent was obtained from the parents or legal guardians of the participants in childhood and later on from the participants themselves. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Open Access funding enabled and organized by Projekt DEAL. The German Federal Ministry of Education and Research [grant number, 01EA1906D] supported this work. The funder had no role in the design of this study, the collection and analysis of data, the preparation of the manuscript, and the decision to publish this work."