Nutritional anthropology.

Definition

Nutritional anthropology is a subfield of biological and biocultural anthropology that examines the interaction between diet, human biology, ecology, and culture. It views nutrition not merely as a biological requirement but as a biocultural phenomenon shaped by environment, social organization, and political economy. Anthropologists such as John Bennett (1943) and later Scrimshaw and Young (1989) emphasized that nutrition must be analyzed as a process where food intake is inseparable from the inequality and ecology of a community.

Example / case study

1: Lactose Tolerance: This biological trait evolved in specific pastoralist cultures with a history of milk-drinking (cultural economy), showing how a cultural adaptation changed the biological capacity of a population to thrive in their ecological setting.
2: High-Altitude Adaptation: In high-altitude regions like Tibet or the Andes, the ecological stress is hypoxia (low oxygen). Human adaptability here is integrated: it involves biological changes like increased lung capacity and the EPAS1 gene, as well as cultural adjustments like transhumance (seasonal migration) and iron-rich diets.
in Indian Tribes: ICMR (2009) studies utilized these techniques to identify widespread Chronic Energy Deficiency (CED) among Indian tribal communities, using Body Mass Index (BMI) and mid-upper arm circumference as primary indicators of health status.
in Indian Tribes: Clinical surveys conducted in tribal regions of Odisha and Madhya Pradesh revealed a high prevalence of Goiter (iodine deficiency) and Bitot’s spots (Vitamin A deficiency)