Skip to main content

Fatty acid composition in the mature milk of Bolivian forager‐horticulturalists: controlled comparisons with a US sample

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

Abstract

Breast milk fatty acid (FA) composition varies greatly among individual women, including in percentages of the long‐chain polyunsaturated FAs (LCPUFA) 20:4n‐6 (arachidonic acid, AA) and 22:6n‐3 (docosahexaenoic acid, DHA), which are important for infant neurological development. It has been suggested that owing to wide variation in milk LCPUFA and low DHA in Western diets, standards of milk FA composition should be derived from populations consuming traditional diets. We collected breast milk samples from Tsimane women at varying lactational stages (6–82 weeks). The Tsimane are an indigenous, natural fertility, subsistence‐level population living in Amazonia Bolivia. Tsimane samples were matched by lactational stage to samples from a US milk bank, and analysed concurrently for FA composition by gas‐liquid chromatography. We compared milk FA composition between Tsimane (n = 35) and US (n = 35) mothers, focusing on differences in LCPUFA percentages that may be due to population‐typical dietary patterns. Per total FAs, the percentages of AA, DHA, total n‐3 and total n‐6 LCPUFA were significantly higher among Tsimane mothers. Mean percentages of 18:2n‐6 (linoleic acid) and trans FAs were significantly higher among US mothers. Tsimane mothers' higher milk n‐3 and n‐6 LCPUFA percentages may be due to their regular consumption of wild game and freshwater fish, as well as comparatively lower intakes of processed foods and oils that may interfere with LCPUFA synthesis.

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1740-8709.2012.00412.x

Affiliations: 1: Integrative Anthropological Sciences, University of California Santa Barbara, Santa Barbara, California, USA 2: Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA 3: Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA 4: Center for Breastfeeding Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA 5: The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA 6: Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, USA

Publication date: 2012-07-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more