From Local Farms to Supermarket Foods: The Story of the Homogenization of the Argentine Diet Told by the Isotope Ratios of Modern Teeth.

Autor: Otero F; Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Científico Tecnológico-Tandil, Tandil, Argentina.; Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Sociales, Laboratorio de Ecología Evolutiva Humana (LEEH), Unidad de Enseñanza Universitaria Quequén, Quequén, Argentina.; Comisión de Investigaciones Científicas, Provincia de Buenos Aires, La Plata, Argentina., Loupias LL; Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Sociales, Laboratorio de Ecología Evolutiva Humana (LEEH), Unidad de Enseñanza Universitaria Quequén, Quequén, Argentina.; Comisión de Investigaciones Científicas, Provincia de Buenos Aires, La Plata, Argentina., Mancini LH; Instituto Laboratório de Análise de Minerais e Rochas (iLAMIR), Universidade Federal Do Paraná, Curitiba, Brazil., Bahniuk R AM; Instituto Laboratório de Análise de Minerais e Rochas (iLAMIR), Universidade Federal Do Paraná, Curitiba, Brazil., Béguelin M; Museo de La Plata, Universidad Nacional de La Plata-CONICET, La Plata, Argentina., Valenzuela LO; Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Científico Tecnológico-Tandil, Tandil, Argentina.; Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Sociales, Laboratorio de Ecología Evolutiva Humana (LEEH), Unidad de Enseñanza Universitaria Quequén, Quequén, Argentina.; Comisión de Investigaciones Científicas, Provincia de Buenos Aires, La Plata, Argentina.
Jazyk: angličtina
Zdroj: American journal of human biology : the official journal of the Human Biology Council [Am J Hum Biol] 2024 Oct 15, pp. e24167. Date of Electronic Publication: 2024 Oct 15.
DOI: 10.1002/ajhb.24167
Abstrakt: Objectives: Nutritional changes over the last century, driven by globalization, hypermarketization, and malnutrition, are global in scale. Large countries in the Global South might be resilient to dietary homogenization due to their natural diversity of regions and ecosystems, which might have prevented the adoption of supermarket diets. Argentina has a wide array of ecosystems and historically different subsistence diets dependent on regional characteristics. We analyzed the spatiotemporal variation of stable isotope values in Argentina using modern teeth to test for regional dietary patterns and its consistence over time.
Materials and Methods: We collected teeth from voluntary donors born between 1940 and 2010, from 72 locations across Argentina. A total of 119 teeth were analyzed for the markers δ 13 C dentine , δ 13 C enamel , δ 15 N, and δ 34 S. A reconstruction of isotopic niches was performed to estimate dietary patterns across different regions and time periods.
Results: This study is the first to analyze changes in modern dietary patterns in Argentina using isotopic data measured in contemporary teeth. We showed latitudinal, longitudinal, and temporal differences in isotopic values, reflecting the variation in available resources within the country. Changes in the diet were observed over time, including declining δ 15 N values, a reduction in δ 34 S range, and a trend toward homogenization of δ 13 C enamel values. Conversely, δ 13 C dentine values remained constant over time, maintaining latitudinal patterns and regional differences across regions.
Discussion: This study increases our understanding of modern population dietary patterns both spatially and over the last 70 years. Our findings suggest that the Argentine population has shifted toward a supermarket diet in recent years.
(© 2024 Wiley Periodicals LLC.)
Databáze: MEDLINE
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