Metabolite Name 	KEGG ID
2-Hydroxybutyric acid	C05984
Ketoleucine	C00233
3-Hydroxybutyric acid	C01089
Alanine	C00041
Betaine	C00719
Carnitine	C00318
Choline	C00114
Citric acid	C00158
Creatine	C00300
Creatinine	C00791
Glucose	C00221
Glutamine	C00064
Glycine	C00037
Histidine	C00135
Isoleucine	C00407
Lactic acid	C00186
Leucine	C00123
Lysine	C00047
Methionine	C00073
CAR(2:0)	C02571
Ornithine	C00077
Phenylalanine	C00079
Proline	C00148
Propylene glycol	C00583
Pyruvic acid	C00022
Tyrosine	C00082
Valine	C00183