Effects of different diets on intestinal microbiota and nonalcoholic fatty liver disease development

Figure 2 Fasting serum insulin, insulin resistance, and oral glucose tolerance test in rats. A: Fasting serum insulin; B: HOMA-IR, calculated according to the formula fasting insulin (μU/mL) × fasting glucose (mmol/L)/22.5; C: Oral glucose tolerance test (OGTT); D: Area under the curve (AUC) of OGTT. Differences were denoted as follows: ^aP < 0.05 vs CON group rats, ^cP < 0.05 vs free high-fat diet (FFAT) group rats, ^eP < 0.05 vs RFAT group rats, ^gP < 0.05 vs restrictive high-sugar diet (RSUG) group rats.