We Crave Nutrient Dense Foods

There's a reason people love fast food far more than they enjoy salads (even when we need a great salad). As hunter-gatherers, it was sometimes difficult to obtain food, so we indulged in food that satiated us and kept us full longer. That's why we got the most enjoyment. We don't have to be concerned about food availability since it's all over the place. So, we choose the quickest way to achieve satisfaction. Fast food however, isn't always the most ideal choice.