This article is a literature review on Amazonian food intake to evaluate the quality of the diet. The authors discuss traditional foods, the nutritional characteristics of core and non-core foods, and the implications of diets based on traditional foods. The authors emphasize the importance of collecting more detailed dietary intake data to better understand Amazonians' diet quality.

This thesis uses a cross-cultural sample to examine the relationship between anemia and infant feeding practices. Examples from the ethnography are presented. Findings are largely descriptive on practice, but are largely inconclusive with regard to anemia.

Considerable variation has been observed in allomaternal nursing (breast-feeding by individuals other than mothers) behavior across contemporary foraging populations: while relatively common in some populations, it is rare or absent among others. Here the authors examine data on allomaternal nursing from 12 previous studies of foraging societies and utilize a worldwide sample of 104 cultures to assess global variation in allomaternal nursing.

This article examines the relationship between early food gratification, emotional predispositions to share food with others, and community systems. Results suggest that gratification of food needs varies with community type, and young children who receive food whenever they cry or ask are more likely to share food in adulthood. In broader terms, the need to receive from others is gratified differently under different sociological conditions, and these differences influence individuals toward divergent socially patterned behaviors in adulthood.

The Trivers-Willard hypothesis posits that concentrations of human milk immune factors vary with maternal condition (maternal diet diversity and body mass index) and the sex of the infant. Using linear mixed-effects models to analyze 358 milk samples from 10 international sites, the authors find minimal support for the Trivers-Willard hypothesis; only one immune factor, IgG, exhibited a significant relationship.

Dietary variation has been implicated in population-level heath outcomes such as adult height and infant health. Here the author investigates these relationships in a sample of 118 nonindustrial societies, providing a comparative and quantitative assessment of nutrition and health cross-culturally.

This study examines the relationship between pairbonds and lactation, specifically the relationship between pairbond stability, alloparenting, and cross-cultural trends in breastfeeding. Findings show that both conjugal stability and availability of alloparental care are associated with age at weaning.

This article examines the relationship between childhood experience and adult personality. This aspect of the adult personality is defined as ego strength. The emphasis of this study is mental health, maturity and the effectiveness of adult learning. Psychoanalytic theory predicts curvilinear relationships but most relationships are linear.

The author tests various hypotheses regarding cross-cultural occurrence of geophagy, the eating of earth. Nearly 500 years of references to geophagy were compiled into the Database on Human Geophagy, which was then used to examine biological justifications for this little-understood behavior.

This study tests the weaning food availability hypothesis, that both the introduction of foods other than breastmilk and the cessation of breastfeeding will vary by society's subsistence type. This hypothesis has implications for demography, as accelerated weaning can lead to increases in both mothers' fertility (due to decreased birth intervals) and infant mortality (due to the presence of pathogens in new foods).