And the rapeseed oil intervention significantly increased the plasma SOD activities and GSH levels of rats (p < 0.05), in which the rats in CRO, LF- and HF-SRO groups showed significantly higher GSH levels compared with SRO group (p < 0.05), yet the SOD activities also increased, but no significant differences were observed among these groups. Here, SOD1 is linked to hydrops fetalis.