Food is fuel, isn’t it? A meal for a human is the equivalent of adding wood to our fireplace. After all, our body temperature must be maintained at about 98 degrees Fahrenheit. Just as a home furnace converts firewood, coal, oil, or natural gas into heat, so do our bodies convert food into heat. Naturally we feel cold when we are famished.
But if food is just fuel, why do we crave steak and fries today; eggplant parmesan tomorrow, and spinach quiche the next day? Why don’t we want celery and peanut butter every day? After all, we don’t fuel our fireplaces with wood today and coal tomorrow. Clearly something else is going on. Food is far more than merely fuel. (more…)