Figure 2.

Volcano plot of false discovery rate p-values and β coefficients for the association between plasma metabolites and dietary intake of protein
The horizontal line represents the false discovery rate (FDR) threshold (0.05) for statistical significance, and the vertical line is set at a β coefficient value of 0. Metabolites to the right of the vertical line indicate that they were positively associated with dietary protein intake, and metabolites to the left of the vertical line indicate that they were inversely associated with dietary protein intake.
Abbreviation: GPC, glycerophosphocholine.