The use of stable isotopes to analyse the diet composition in ancient populations, calculating the carbon and nitrogen isotopic ratios detectable from the bone collagen, begun in the mid-1970s. These stable isotopes are useful in diet reconstruction, because the food sources are isotopically distinct and hence, they are well established indicators of the main dietary sources consumed by an individual over his life-span.
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Gabriele Scorrano (2018) studied this question.
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