Balinese purple sweet potato extract can help lower blood sugar levels and reduce oxidative stress in diabetic rats. The study involved 20 male adult rats, with one group receiving the sweet potato extract and another group serving as the control. After inducing diabetes in all rats, those treated with the extract showed lower blood glucose and malondialdehyde levels, and higher total antioxidant levels compared to the control group. This suggests that Balinese purple sweet potato extract may be beneficial in managing diabetes and improving antioxidant levels in the body.