Figure 5

Partial least squares-discriminant analysis (PLS-DA) and variable importance in projection (VIP) analysis of food secure and food insecure groups using all detected metabolites in the study. (a) Two-dimensional scores plot of PLS-DA (R2X = 0.533, R2Y = 0.387, Q2 = − 0.340). (b) VIP scores of modeled metabolites between groups; top 15 metabolites are shown.