Global Landscape of Malnutrition in Infants and Young Children
Lynnette M Neufeld1, Ty Beal2, Leila M Larson3
1Global Alliance for Improved Nutrition (GAIN), Geneva, Switzerland, lneufeld@gainhealth.org.
Insights
Child malnutrition, including stunting and wasting, poses significant global health risks. Accurate data is crucial for effective interventions to combat diverse forms of malnutrition.
Area of Science:
- Global child health
- Nutritional epidemiology
- Public health policy
Background:
- Malnutrition in early life leads to immediate mortality and long-term health impairments.
- Undernutrition causes stunting (149M children <5 yrs) and wasting (49M children), with significant global and Indian prevalence.
- Micronutrient malnutrition data is scarce, and anemia is an unreliable proxy due to complex causes.
Purpose of the Study:
- To highlight the urgent need for updated data on the prevalence and distribution of various malnutrition forms globally.
- To emphasize the co-existence of undernutrition (stunting, wasting, micronutrient deficiency) and overweight in children.
- To underscore the scarcity of data on factors predicting these co-existing conditions.
Main Methods:
- Review of existing global and national data on child malnutrition.
- Analysis of trends in stunting, wasting, overweight, and micronutrient deficiencies.
- Examination of data gaps and variability in malnutrition prevalence and determinants.
Main Results:
- Stunting affects over 149 million children globally, with 33% in India.
- Over 49 million children are wasted, while 40 million are overweight globally.
- Significant regional variations exist in malnutrition prevalence and its determinants, necessitating localized data.
Conclusions:
- Accurate, up-to-date data is essential for understanding and addressing the multifaceted nature of child malnutrition.
- Tailored policies and programs require better data on the co-existence of different malnutrition forms and their predictors.
- Accelerating progress requires urgent efforts to collect and utilize comprehensive malnutrition data at local levels.
Abstract:
Malnutrition during the first years of life has immediate adverse health consequences, including increased mortality risk, and impaired long-term health and capacities. Undernutrition is an important contributor to poor linear growth, stunting, which affects over 149 million children <5 years of age worldwide, one-third of whom live in India. Over 49 million children are wasted; yet globally, there are also 40 million overweight children. Up-to-date data on the magnitude and distribution of micronutrient malnutrition globally and in many countries are lacking. Anemia has been used as a proxy for micronutrient malnutrition; yet anemia, like stunting, has a complex etiology and numerous nonnutritional as well as nutritional causes. Undernutrition, specifically stunting, wasting, and micronutrient deficiency increasingly coexist with overweight, but accurate data to assess the extent to which these co-exist in countries, households, and individuals and the factors that predict it are scarce. Recent analyses in several countries suggest that there is substantial variability within and among regions in the prevalence and determinants of malnutrition. More and better data that can be used to tailor policies and programs to local contexts are urgently needed if we are to accelerate progress toward addressing malnutrition in all its forms.
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