According to the American Heart Association, eating a diet high in saturated fats raises the level of cholesterol in the blood, which increases the risk of heart disease and stroke. A six-piece KFC variety bucket contains 840 calories, 44 grams of fat and 7 grams of saturated fat.
In addition to its high fat content, the same variety bucket also contains 1,600 mg of sodium, which is 67 percent of the recommended daily allowance. A diet high in sodium increases blood pressure, especially in the elderly. For people who are suffering from diabetes or are on a carbohydrate-restricted diet, the KFC variety bucket contains 63 grams of carbohydrates.