Don't confuse foods made with trans fat with simple fried foods. There is a difference, but you should do your best to avoid both.
Even when they don't have trans fat, fried foods in restaurants are often cooked in oil that is reused. This can create by-products that have been linked to a variety of diseases. And fried foods are highly caloric. "The point is that [frying] causes a food to absorb more fat and calories," Bob says. "It's why I want you to replace it with some other alternatives."
One alternative you can try is oven-frying. Cut potatoes into strips, toss or spray with a little olive oil, salt, and pepper, and cook in a 400° oven until brown. And if you can't live without potato chips, choose baked varieties made without trans fat.