While many fast food meals are high in fat, they can be part of a healthy diet and active lifestyle as long as parents follow some simple guidelines: for breakfast, simpler is better.Making healthy choices for lunch and dinner at fast food restaurants isn't as simple as limiting your child to the salad bar and avoiding the burgers, pizza, and sandwiches. It's often a matter of what's on top (i.e. the dressings, toppings, and condiments) that determines whether the meal is high carbohydrate, low fat or not.