All fats are a mix of saturated, monounsaturated, and polyunsaturated fatty acids, though people usually categorize them by the fatty acid that predominates. The good fats include monounsaturated fats (like avocado, canola oil, olive oil, safflower, and sunflower oil) and polyunsaturated fats (like fish, nuts, seeds, soy foods, sesame oil, and soybean oil).