Berry et al. 2020

Research paper

Berry SE, Valdes AM, Drew DA, Asnicar F, Mazidi M, Wolf J, Capdevila J, Hadjigeorgiou G, Davies R, Al Khatib H, Bonnett C, Sherber D, Linenberg I, Segata N, Franks PW, Spector TD. Human postprandial responses to food and potential for precision nutrition. Nat Med. 2020 Jun;26(6):964-973. doi:10.1038/s41591-020-0934-0

Why we cite it

The PREDICT 1 study extends Zeevi et al. 2015 (cgl01) by adding lipid and insulin responses alongside glucose, incorporating twin pairs to separate genetic from environmental factors, and demonstrating that even identical twins show substantial differences — proving that modifiable factors drive most of the variation. The quantification of variance explained by different factors (genetics, microbiome, meal composition, modifiable behaviors) provides a framework for understanding what matters most.