You eat the wrong fats
Research suggests that excessive fat intake (more than 30 percent of total calories) may worsen insulin resistance. Stay away from meals that contain high amounts of saturated fat, like those from fast-food restaurants. While the mechanism isn’t clearly understood, some research has found a modest benefit in monounsaturated fatty acids (MUFAs) on insulin resistance, as well as decreasing liver fat.
MUFAs are fats found in avocados, olive oil, nut butters, and seeds, to name a few. A diet that is high in MUFAs and lower in saturated fats is also associated with improvements in cardiovascular health, lower LDL cholesterol, and reduced triglycerides and blood pressure, says Massey.