In the multivariate analysis, higher serum BHB and LA were both significantly associated with lower blood eosinophil counts and higher blood neutrophil counts independent of age, sex, smoking history, elapsed time after a meal, medication for dyslipidemia, serum total IgE, HDL-C, TG, and high-sensitivity CRP (Supplementary Table S2). This evidence concerns the gene IGHE and metabolic syndrome.