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Home/Anthropology/Mains PYQ/2023/Paper I/Applied & Forensic Anthropology
UPSC MainsAnthropology Optional Paper I 2023 15 Marks Model Answer Available

Forms of Malnutrition and Protein-Calorie Malnutrition — 2023 Paper I

Question · 2023 · Paper I · 15 Marks

Elucidate the different forms of malnutrition. Describe protein-calorie malnutrition with suitable examples.

Model Answer

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Introduction Malnutrition refers to a pathological state resulting from an absolute or relative deficiency, excess, or imbalance of essential macro- and micronutrients. In contemporary nutritional anthropology, the older term "Protein-Calorie Malnutrition" (PCM) is referred to as Protein-Energy Malnutrition (PEM) to better reflect the synergistic loss of total dietary energy and protein.

Forms of Malnutrition

According to the Global Nutrition Report 2026, the world currently faces a complex "triple burden" of malnutrition:

  1. Undernutrition: Results from insufficient intake of calories and macronutrients. It manifests as:
    • Stunting (Chronic: low height-for-age). According to NFHS-6 (2023-24), 29.3% of Indian children under five remain stunted.
    • Wasting (Acute: low weight-for-height). NFHS-6 reports Indian wasting levels at 19.0%.
  2. Micronutrient Malnutrition ("Hidden Hunger"): Occurs when calorie intake is adequate, but essential vitamins and minerals are missing. Examples: Iron-deficiency anemia (highly prevalent in Indian women), Vitamin A deficiency (causing night blindness), and Iodine deficiency (goiter).
  3. Overnutrition: Caused by excess energy intake, often from ultra-processed foods, leading to obesity, type-2 diabetes, and cardiovascular diseases. India is increasingly facing a "Double Burden" where stunting and obesity coexist within the same communities.

Protein-Energy Malnutrition (PEM)

PEM is a severe manifestation of undernutrition, primarily affecting infants and young children during the critical weaning phase. It is clinically and culturally classified into:

  1. Marasmus (Severe Energy Deficiency)
  • Pathology: Caused by a prolonged, severe deficiency of total calories (energy) and protein. The body begins to metabolize its own muscle and fat tissues for survival.
  • Symptoms: Extreme wasting ("skin-and-bones" appearance), loss of subcutaneous fat, severe growth retardation, and a "monkey-like" wrinkled face. Crucially, edema (swelling) is absent.
  • Example Scenario: Often seen in infants under 1 year when breastfeeding fails or stops early, and the substitute food is highly diluted, unhygienic animal milk or watery gruels.
  1. Kwashiorkor (Severe Protein/Metabolic Imbalance)
  • Pathology: The term originates from the Ga language of Ghana, meaning "the disease the deposed baby gets when the new baby comes." It reflects severe protein deficiency and metabolic imbalance, often despite adequate carbohydrate intake.
  • Symptoms: Nutritional edema (swelling of the belly and feet due to fluid retention), "moon face," fatty liver, skin depigmentation, and reddish/brittle hair.
  • Example Scenario: Occurs frequently in societies relying heavily on low-protein starchy staples. For example, populations transitioning newly weaned children exclusively onto cassava, yam, or maize gruels without protein supplements.
  1. Marasmic-Kwashiorkor
  • A mixed clinical condition showing severe tissue wasting (Marasmus) alongside the hallmark edema (Kwashiorkor). It usually occurs when a child with Marasmus suffers an acute infection that severely depletes remaining protein reserves.

The Anthropological Dimension of PEM

Malnutrition is fundamentally biocultural. Anthropologists note that PEM is rarely just about food availability; it is driven by:

  • Cultural Weaning Practices: Sudden cessation of breastfeeding due to a new pregnancy, paired with nutritionally poor transitional foods.
  • Intra-household Food Allocation: Patriarchal norms where adult males receive protein-rich foods (meat/dairy) first, leaving starchy remnants for women and children.
  • Food Taboos: Cultural restrictions on pregnant/lactating women consuming specific high-protein foods (like eggs or certain fish) due to fears of "heating" the body.

Conclusion PEM cannot be understood merely as a biological deficit of protein and calories. As the latest NFHS-6 data shows, eliminating stunting and wasting requires an anthropological approach that integrates targeted supplementary feeding with an understanding of maternal workload, household gender dynamics, and cultural dietary practices.

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UPSC Anthropology Optional 2023 — Paper I

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