Frozen Chicken for Wild Fish: Nutritional Transition in the Brazilian Amazon Region Determined by Carbon and Nitrogen Stable Isotope Ratios in Fingernails

Autor(es):Mostrar menos -

Nardoto, Gabriela B. ^{[1, 2]} ; Murrieta, Rui Sergio S. ^[3] ; Prates, Luis Enrique G. ^{[3, 4]} ; Adams, Cristina ^[5] ; Garavello, Maria Elisa P. E. ^[6] ; Schor, Tatiana ^[7] ; De Moraes, Andre ^[7] ; Rinaldi, Fernando D. ^[1] ; Gragnani, Juliana G. ^[1] ; Moura, Edila A. F. ^[8] ; Duarte-Neto, Paulo J. ^[9] ; Martinelli, Luiz A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, CENA, BR-13416000 Piracicaba, SP - Brazil

^[2] Univ Brasilia, Fac UnB Planaltina, BR-73300000 Brasilia, DF - Brazil

^[3] Univ Sao Paulo, Inst Biociencias, BR-05508900 Sao Paulo - Brazil

^[4] Univ Nacl Colombia, Leticia - Colombia

^[5] Univ Sao Paulo, Escola Artes Ciencias & Humanidades, BR-03828080 Sao Paulo - Brazil

^[6] Univ Sao Paulo, ESALQ, BR-13418900 Piracicaba, SP - Brazil

^[7] Univ Fed Amazonas, Dept Geog, BR-69077000 Manaus, Amazonas - Brazil

^[8] Fed Univ Para, Ctr Filosofia & Ciencias Humanas, BR-66077810 Belem, Para - Brazil

^[9] Univ Fed Rural Pernambuco, Unidade Acad Garanhuns, BR-55292270 Garanhuns, PE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AMERICAN JOURNAL OF HUMAN BIOLOGY; v. 23, n. 5, p. 642-650, SEP-OCT 2011.
• Citações Web of Science: 31

Resumo

Objectives: 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 Solimoes River in Brazil. Methods: Carbon and nitrogen stable isotope ratios were analyzed from the fingernails of 431 volunteer subjects living in different settings ranging from rural villages, small towns to urban centers along the Solimoes River. Data from 200 dietary intake surveys were also collected using food frequency questionnaires and 24-h recall interviews in an effort to determine qualitative aspects of diet composition. Results: Fingernail delta(13)C values (mean standard deviation) were -23.2 +/- 1.3, 20.2 +/- 1.5, and 17.4 +/- 1.3 parts per thousand and delta(15)N values were 11.8 +/- 0.6, 10.4 +/- 0.8, and 10.8 +/- 0.7 parts per thousand for those living in rural villages, small towns, and major cities, respectively. We found a gradual increase in the number of food items derived from C(4) plant types (meat and sugar) and the replacement of food items derived from C(3) plant types (fish and manioc flour) with increasing size of urban centers. Conclusion: Increasing urbanization in the Brazilian Amazon is associated with a significant change in food habits with processed and industrialized products playing an increasingly important role in the diet and contributing to the nutrition transition in the region. Am. J. Hum. Biol. 23:642-650, 2011. (C) 2011 Wiley-Liss, Inc. (AU)

• Processo FAPESP: 07/51342-8 - Diversidade de hábitos alimentares no Brasil: uma abordagem isotópica
• Beneficiário: Luiz Antonio Martinelli
• Modalidade de apoio: Auxílio à Pesquisa - Regular