Lipid peroxidation (MDA content), ORAC, rGSH, activities of SOD, CAT and GPx, and gene expression of Nox4 and P22phox in liver from the rats fed with a control diet (CC group), a high-fat high-fructose diet (HFHF group), a high-fat high-fructose diet supplemented with pterostilbene at a dose of 15 mg/kg body weight/d (PT15 group), a high-fat high-fructose diet supplemented with pterostilbene at a dose of 30 mg/kg body weight/d (PT30 group) or a high-fat high-fructose diet supplemented with resveratrol at a dose of 30 mg/kg body weight/d (RSV30 group) (A–H). Values are presented as mean ± SEM. Bars not sharing common letters a–c are significantly different (p < 0.05). MDA: malondialdehyde; ORAC: Oxygen Radical Antioxidant Capacity; rGSH: reduced glutathione; SOD: superoxide dismutase; CAT: catalase; GPx: glutathione peroxidase; Nox4: NADPH oxidase 4; P22phox: cytochrome B-245 alpha chain.