Sugar

I bought some Krispy Kreme donuts today. I must admit they are very, very tasty, even though I realize a diet full of processed foods is not very healthy. Most everyone likes sweets, especially kids, and so there might be an evolutionary component to this. Is it that humans need a certain amount of sugar in their diet and so we have developed a liking for sugar? If so, why is this "liking" more like a "craving"? I do not know. I'll need to research this further.