Food miles are a way of measuring the distance food travels from the place it was grown, to your plate. When food has to travel a long distance, it uses a lot of resources, like fuel in trucks and planes, to get it from the farm to you. Food miles are a way to measure the environmental impact of the food you eat, because the longer it travels, the more resources it uses and the more pollution it creates. Generally, food that travels less is better for the environment.