No. Groups Plasma insulin (nmol/L) Plasma glucose (mmol/L) insulin resistance index (IRI) (I) Normal Regular diet (RD) 1.2 ± 0.1 4.8 ± 1.2 0.256 (II) Control positive High-fat diet (HFD) 1.8** ± 0.07 5.9*  ± 1.5 0.472** (III) HFD+ Purslane fixedoil 150 g/kg of diet 1.7* ± 0.3 7.7 * ± 1.08 0.581** (IV) HFD+ Purslane fixedoil 300 g/kg of diet 1.5** ± 0.4 6.9 ** ± 1.3 0.64** (V) HFD+ Metformin 500 mg/kg bw 1.6** ± 0.2 6.3** ± 0.95 0.448** Values represent the mean ± SE (n=8). High-fat diet (HFD) control mice were compared with regular diet (RD) control mice. Experimental groups were compared with the high-fat diet control mice. Insulin Resistance Index = Insulin (nmol/L) × glucose(mmol/L)/22.5. *Significantly different from control group at p<0.05. **Significantly different from control group at p<0.01.

Table 3: Effect of purslane fixed oil on plasma insulin, plasma glucose and insulin resistance index (IRI).