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Anthropometric data indicate nutritional homogeneity in Hadza foragers of Tanzania.
Am J Hum Biol 2007 Jan-Feb; 19(1):107-18AJ

Abstract

We analyzed body mass index (BMI = wt/height(2)) and percent body fat (BF%) in adults of the Hadza, an egalitarian society with a strong food-sharing ethic, to examine variation in energetic status in relation to sex, age, and time of year. Data collected from 26 camps over six field seasons gave a cross-sectional sample of 238 males and 235 females and a small longitudinal sample (n = 54). We found that mean BMI showed no sex difference [20.1 +/- 1.6 (SD) kg/m(2) for males and 20.3 +/- 2.2 kg/m(2) for females] and remained similar, regardless of age or time of year. Mean BF% showed a significant sex difference, as expected [10.6 +/- 3.2 (SD) % for males and 19.0 +/- 7.0% for females (P < 0.0001)], with two significant age departures from uniformity: (1) males in the prime age group (30-45 years, n = 79) had a higher mean BF% (11.7%) compared to other ages (P < 0.03), and (2) females in the extreme elderly age group (> 75 years, n = 11) had a lower mean BF% (11.3%) compared to other ages (P < 0.004). In the longitudinal sample, we found no significant change over time in mean BMI or BF%. However, relative change in BF% fluctuated within individuals by as much as 20% of initial values for both sexes. Taken collectively, our results support the idea of broad nutritional homogeneity among the Hadza, but indicate that subtle, potentially important differences in energetic condition exist as well.

Authors+Show Affiliations

Harvard University, Department of Anthropology, Cambridge, Massachusetts 02138, USA. dsherry@fas.harvard.eduNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

17160974

Citation

Sherry, Diana S., and Frank W. Marlowe. "Anthropometric Data Indicate Nutritional Homogeneity in Hadza Foragers of Tanzania." American Journal of Human Biology : the Official Journal of the Human Biology Council, vol. 19, no. 1, 2007, pp. 107-18.
Sherry DS, Marlowe FW. Anthropometric data indicate nutritional homogeneity in Hadza foragers of Tanzania. Am J Hum Biol. 2007;19(1):107-18.
Sherry, D. S., & Marlowe, F. W. (2007). Anthropometric data indicate nutritional homogeneity in Hadza foragers of Tanzania. American Journal of Human Biology : the Official Journal of the Human Biology Council, 19(1), pp. 107-18.
Sherry DS, Marlowe FW. Anthropometric Data Indicate Nutritional Homogeneity in Hadza Foragers of Tanzania. Am J Hum Biol. 2007;19(1):107-18. PubMed PMID: 17160974.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anthropometric data indicate nutritional homogeneity in Hadza foragers of Tanzania. AU - Sherry,Diana S, AU - Marlowe,Frank W, PY - 2006/12/13/pubmed PY - 2007/2/23/medline PY - 2006/12/13/entrez SP - 107 EP - 18 JF - American journal of human biology : the official journal of the Human Biology Council JO - Am. J. Hum. Biol. VL - 19 IS - 1 N2 - We analyzed body mass index (BMI = wt/height(2)) and percent body fat (BF%) in adults of the Hadza, an egalitarian society with a strong food-sharing ethic, to examine variation in energetic status in relation to sex, age, and time of year. Data collected from 26 camps over six field seasons gave a cross-sectional sample of 238 males and 235 females and a small longitudinal sample (n = 54). We found that mean BMI showed no sex difference [20.1 +/- 1.6 (SD) kg/m(2) for males and 20.3 +/- 2.2 kg/m(2) for females] and remained similar, regardless of age or time of year. Mean BF% showed a significant sex difference, as expected [10.6 +/- 3.2 (SD) % for males and 19.0 +/- 7.0% for females (P < 0.0001)], with two significant age departures from uniformity: (1) males in the prime age group (30-45 years, n = 79) had a higher mean BF% (11.7%) compared to other ages (P < 0.03), and (2) females in the extreme elderly age group (> 75 years, n = 11) had a lower mean BF% (11.3%) compared to other ages (P < 0.004). In the longitudinal sample, we found no significant change over time in mean BMI or BF%. However, relative change in BF% fluctuated within individuals by as much as 20% of initial values for both sexes. Taken collectively, our results support the idea of broad nutritional homogeneity among the Hadza, but indicate that subtle, potentially important differences in energetic condition exist as well. SN - 1042-0533 UR - https://www.unboundmedicine.com/medline/citation/17160974/Anthropometric_data_indicate_nutritional_homogeneity_in_Hadza_foragers_of_Tanzania_ L2 - https://doi.org/10.1002/ajhb.20591 DB - PRIME DP - Unbound Medicine ER -