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Frozen chicken, wild fish, and fingernails

Frozen chicken, wild fish, and fingernails all come together in a single, scientific investigation:

Frozen chicken for wild fish: Nutritional transition in the Brazilian Amazon region determined by carbon and nitrogen stable isotope ratios in fingernails,” Gabriela B. Nardoto, et al., American Journal of Human Biology, Epub May 31, 2011. The authors explain:

“Amazonian populations are experiencing dietary changes characteristic of the nutrition transition. However, the degree of change appears to vary between urban and rural settings. To investigate this process, we determined carbon and nitrogen stable isotope ratios in fingernails and dietary intake of Amazonian populations living along a rural to urban continuum along the Solimões River in Brazil.”

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