GPT and hydrops fetalis: Fig 6 depicts changes in hepatic enzyme activities. The ALT, AST, and ALP activities were significantly (p < 0.01) higher in rats consuming HF diets in comparison to the control group (Fig 6A–6C). Purple potato extract treatment in HF-diet-fed rats prevented the increased ALT, AST, and ALP activities (Fig 6A–6C) in plasma. Similarly, the treatment of orlistat in HF-diet-fed rats also prevented the elevation of these three enzymes (Fig 6A–6C). Moreover, treatment with purple potato extract and orlistat had no unwanted impact on the liver enzyme activities in the control rats (Fig 6A–6C).