Puts the practice of dirt eating by women into a larger context: that of dirt eating, or geophagy, in the animal kingdom and dirt eating by entire human populations, men, women and children. Presents the idea that we are all dirt eaters in that we all add salt to our diet and that dirt eating is neither an uncommon, nor an abnormal behavior, but a reflection that being a human omnivore is a tricky business in many parts of the world. Humans need forty or fifty nutrients to stay healthy, and sometimes we have to go outside the bounds of what is considered food to find them. Or, we have to add things to our diet, like clay, in order to turn toxic foods into nutritious ones.

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