Malnutrition and dietary protein: Evidence from China and from international comparisons
Malnutrition, as measured by anthropometric status, is a powerful risk factor for illness and elevated death rates throughout life. Understanding the relative importance of disease, dietary quantity, and dietary quality in causing malnutrition is therefore of major importance in the
design of public policy. This paper contributes to the understanding of the relative importance of quantity and quality of diet by utilizing aggregate data to complement previously reported individual-level studies. Three compilations of anthropometric data—one involving subjects from
13 provinces in China, another involving subjects from 64 counties in China, and a third involving 41 populations in 40 countries—are used to examine the relative importance for human growth of inadequacies of dietary energy and protein. The analysis involves regressing average adult
heights and weights against estimates of average energy and protein availability (by province, county, or country) and per capita incomes. We use protein availability in part as a marker for overall quality of the diet, while recognizing that protein is far from perfectly correlated with dietary
fat or micronutrient availability. The paper discusses issues of both data quality and statistical methodology, and points to relevant resulting caveats to our conclusions. Subject to these limitations, all three analyses suggest that, at the levels of dietary intake in these populations,
lower protein intake is related to growth failure whereas lower levels of energy availability are not. The protein effect appears stronger for males than for females.
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Established in 1978, the Food and Nutrition Bulletin (FNB) is a peer-reviewed journal published quarterly by the Nevin Scrimshaw International Nutrition Foundation. The focus of the journal is to highlight original scientific articles on nutrition research, policy analyses, and state-of-the-art summaries relating to multidisciplinary efforts to alleviate the problems of hunger and malnutrition in the developing world.
Food and Nutrition Bulletin's 2012 Impact Factor: 2.106
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