Extended Data Fig. 2

a, Gating strategy for eosinophils, defined as Siglec-F⁺CD11b⁺ singlets. b, Gating strategy for cytokine-expressing CD4⁺ and CD8⁺ T lymphocytes. c, Serum titers of IgG1 and mouse mucosal mast cell protease 1 (MCPT1) (n = 2–10, two-way ANOVA, P values adjusted using the Benjamini-Hochberg method). d, Representative plots for IgE-coated bacteria in fiber-rich and fiber-free fed mice. Each sample was stained with an α-IgE antibody (red) or an isotype control (blue).