Do fat people have an evolutionary advantage?

Weighing too much is a relatively modern problem. For the prior ten thousand years or so, the major concern for humans had been finding enough food, not having to deal with too much of it. (Food abundance is still a problem only in certain parts of the globe. Africa, as we have seen so dramatically in recent reports, is still trying to feed, not diet.) Consequently, because fat is a very efficient way for your body to store energy, your body’s physiology evolved to conserve body fat. In a world of scarcity, those who gained weight easily had an evolutionary advantage - survival of the fattest, you might say.