We collected the vast experimental data available on rats for the long-term effects of maternal HFD on MetS-related phenotypes: (1) body fat (adiposity was also estimated indirectly by body weight and plasma leptin concentration), (2) plasma fasting glucose and insulin concentrations, (3) HDL-c, (4) plasma triglycerides, and (5) systolic blood pressure (SBP). Here, LEP is linked to metabolic syndrome.