The main objective of this study is to investigate diet patterns among rural and urban populations of the Center‐West, Northeast, and Amazon regions of Brazil through the carbon and nitrogen isotopic composition of fingernails, recognizing that the extent of market integration is a key driver of food consumption.

中文翻译：

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绘制指甲的碳和氮同位素组成图，以展示巴西中西部，东北部和亚马逊地区的农村到城市的营养过渡。

这项研究的主要目的是通过指甲的碳和氮同位素组成来调查巴西中西部，东北部和亚马逊地区的农村和城市人口的饮食模式，认识到市场整合的程度是关键驱动因素食物消费。