Document Detail


Fatty acid composition in the mature milk of Bolivian forager-horticulturalists: controlled comparisons with a US sample.
MedLine Citation:
PMID:  22624983     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Melanie A Martin; William D Lassek; Steven J C Gaulin; Rhobert W Evans; Jessica G Woo; Sheela R Geraghty; Barbara S Davidson; Ardythe L Morrow; Hillard S Kaplan; Michael D Gurven
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2012-05-24
Journal Detail:
Title:  Maternal & child nutrition     Volume:  8     ISSN:  1740-8709     ISO Abbreviation:  Matern Child Nutr     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-07     Completed Date:  2012-08-06     Revised Date:  2013-12-11    
Medline Journal Info:
Nlm Unique ID:  101201025     Medline TA:  Matern Child Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  404-18     Citation Subset:  IM    
Copyright Information:
© 2012 Blackwell Publishing Ltd.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Bolivia
Fatty Acids / analysis*
Fatty Acids, Essential / analysis
Fatty Acids, Unsaturated / analysis
Female
Humans
Lactation / metabolism*,  physiology
Maternal Nutritional Physiological Phenomena / physiology*
Middle Aged
Milk, Human / chemistry*
Nutritional Status*
United States
Young Adult
Grant Support
ID/Acronym/Agency:
IH/NICHD HD13021//PHS HHS; R01 AG024119/AG/NIA NIH HHS; R01AG023119-01/AG/NIA NIH HHS; UL1 TR000077/TR/NCATS NIH HHS
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Fatty Acids, Essential; 0/Fatty Acids, Unsaturated
Comments/Corrections

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