Figure 7A shows that 31 different metabolites were obtained from the analysis of the NF group, HF group, and COSM group. These differentially enriched substances, including 27 TGs, 2 PEs, 1 DG, and 1 SM, are mainly related to cholesterol metabolism, glycerolipid metabolism, glycerophospholipid metabolism, sphingolipid metabolism, insulin resistance, fat digestion and absorption, thermogenesis, the cAMP signalling pathway, and the sphingolipid signalling pathway (Figure 7B, Table 2). Here, INS is linked to hydrops fetalis.