Found this today, and I can't believe it, how all our cravings for various foods are all down to chemical deficiencies, for example, a need for chocolate is a deficiency in magnesium!

And there I was thinking it was because I'm trying to quit smoking.

Anyhoo, the site lists all the deadly sins, "a moment on the lips, a lifetime on the hips" the deficiency, and the alternatives: mostly legumes, nuts and cheese. :(