A steady diet of double cheeseburgers and fries often leads to a bigger waistline and other related health problems. Thanks to the type of fats used until recently at fast food restaurants, frequent diners may also have raised their heart attack risk. Trans fats raise "bad" LDL cholesterol, lower "good" HDLs, raise blood fats called triglycerides that contribute to hardening of the arteries, and fire up inflammation — an immune-system response that's involved in the build-up of fatty plaque in artery walls. Here are some ways to reduce your visits to fast food restaurants.