insufficiencies. The three great domesticated crops of prehistory were rice, wheat, and maize, but all had significant drawbacks as staples. As the journalist John Lanchester explains: “Rice inhibits the activity of Vitamin A; wheat has a chemical that impedes the action of zinc and can lead to stunted growth; maize is deficient in essential amino acids and contains phytates, which prevent the absorption of iron.” The average height of people actually fell by almost six inches in the early days of farming in the Near East. Even on Orkney, where prehistoric life was probably as good as it could
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