Table 4. Selected serum metabolites according to values of VIP in the PLS-DA model.

Var ID (primary)	M16. VIP [2]	Metabolic compounds
336.2231_20.56	2.59793	Prostaglandin C1
299.2630_10.10	2.10302	Ricinoleic acid
282.2824_19.12	1.98302	Oleic acid amide
782.5676_27.07	1.93841	Ethyl docosahexaenoate
664.1543_24.10	1.88236	Hulupapeptide
530.3884_8.97	1.85119	Lysophosphatidylethanolamine 0:0/22:4
250.1085_4.17	1.6207	Cysteinyl-Lysine
161.1302_11.08	1.61488	Methacholine
581.4198_20.46	1.60485	Vitamin K2

VIP, variable importance in projection; PLS-DA, partial least squares discriminant analysis.