Notes
This study was supported by funding from the INC (International Nut and Dried Fruit Council).The study was registered at Author disclosures: The authors report no conflicts of interest.Supplementary Tables 1 and 2 and Supplementary Figure 1 are available from the “Supplementary data” link in the online posting of the article and from the same link in the online table of contents at Abbreviations used: ASV, amplicon sequence variant; COMPASS, computerized mental performance assessment system; CVR, cerebrovascular reactivity; HESI, heated spray ionization source; MCA, middle cerebral artery; PCA, Principal Component Analysis; PLA, placebo; PLSDA, Partial Least Squares Discriminant Analysis; RVIP, rapid visual information processing; VIP, Variable Importance in Projection.