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Sex differences in Hadza eating frequency by food type.
Am J Hum Biol 2011 May-Jun; 23(3):339-45AJ

Abstract

OBJECTIVES

We investigate sex differences in frequencies of adults eating in a foraging population-the Hadza of Tanzania.

METHODS

We use eating frequency data from instantaneous scan observations of the Hadza, to see to how much sharing of foods taken back to camp compensates for the targeting of different foods by each sex while out foraging.

RESULTS

Eating in camp differs by sex in terms of overall eating frequency, as well as in terms of diet composition (frequencies of eating each food type). We also control for sex-differences in time spent in camp and still find sex-differences in eating frequencies-women are observed eating significantly more frequently than men. There are also sex-differences in the eating frequencies of particular food types both with and without controlling for presence in camp. Finally, we use data on acquisition of each food type by sex and find that both sexes are more frequently observed eating women's foods in camp than men's foods.

CONCLUSIONS

At least in the case of the Hadza, we see pronounced sex differences in the in-camp diet. Hadza men are eating a higher quality diet than are women, but women are able to eat far more frequently, and spend less time foraging than men. It is not yet clear whether a regular caloric intake of lower quality foods would be more beneficial for maintaining fecundity than a more variable diet consisting of higher quality foods.

Authors+Show Affiliations

Centre for Research in Evolutionary Anthropology (CREA), Department of Life Sciences, Roehampton University, Holybourne Avenue, London SW15 4JD, United Kingdom. Colette.Berbesque@roehampton.ac.ukNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

21445938

Citation

Berbesque, J Colette, et al. "Sex Differences in Hadza Eating Frequency By Food Type." American Journal of Human Biology : the Official Journal of the Human Biology Council, vol. 23, no. 3, 2011, pp. 339-45.
Berbesque JC, Marlowe FW, Crittenden AN. Sex differences in Hadza eating frequency by food type. Am J Hum Biol. 2011;23(3):339-45.
Berbesque, J. C., Marlowe, F. W., & Crittenden, A. N. (2011). Sex differences in Hadza eating frequency by food type. American Journal of Human Biology : the Official Journal of the Human Biology Council, 23(3), pp. 339-45. doi:10.1002/ajhb.21139.
Berbesque JC, Marlowe FW, Crittenden AN. Sex Differences in Hadza Eating Frequency By Food Type. Am J Hum Biol. 2011;23(3):339-45. PubMed PMID: 21445938.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sex differences in Hadza eating frequency by food type. AU - Berbesque,J Colette, AU - Marlowe,Frank W, AU - Crittenden,Alyssa N, Y1 - 2011/03/28/ PY - 2010/02/19/received PY - 2010/08/31/revised PY - 2010/10/25/accepted PY - 2011/3/30/entrez PY - 2011/3/30/pubmed PY - 2011/8/9/medline SP - 339 EP - 45 JF - American journal of human biology : the official journal of the Human Biology Council JO - Am. J. Hum. Biol. VL - 23 IS - 3 N2 - OBJECTIVES: We investigate sex differences in frequencies of adults eating in a foraging population-the Hadza of Tanzania. METHODS: We use eating frequency data from instantaneous scan observations of the Hadza, to see to how much sharing of foods taken back to camp compensates for the targeting of different foods by each sex while out foraging. RESULTS: Eating in camp differs by sex in terms of overall eating frequency, as well as in terms of diet composition (frequencies of eating each food type). We also control for sex-differences in time spent in camp and still find sex-differences in eating frequencies-women are observed eating significantly more frequently than men. There are also sex-differences in the eating frequencies of particular food types both with and without controlling for presence in camp. Finally, we use data on acquisition of each food type by sex and find that both sexes are more frequently observed eating women's foods in camp than men's foods. CONCLUSIONS: At least in the case of the Hadza, we see pronounced sex differences in the in-camp diet. Hadza men are eating a higher quality diet than are women, but women are able to eat far more frequently, and spend less time foraging than men. It is not yet clear whether a regular caloric intake of lower quality foods would be more beneficial for maintaining fecundity than a more variable diet consisting of higher quality foods. SN - 1520-6300 UR - https://www.unboundmedicine.com/medline/citation/21445938/Sex_differences_in_Hadza_eating_frequency_by_food_type_ L2 - https://doi.org/10.1002/ajhb.21139 DB - PRIME DP - Unbound Medicine ER -