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May 3, 2026Frontiers in NutritionOpen Access

Critical malnutrition thresholds and educational system constraints in Sub-Saharan Africa: implications for evidence-based nutrition policy

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Authors

IGIbtissem GannounSAShaykhah AldossariMAMajdi Argoubi

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Overview

Randomized trial identifies malnutrition thresholds affecting education in Sub-Saharan Africa, suggesting urgent nutritional interventions are needed.

Key Points

  • This research aims to quantify how malnutrition constrains educational outcomes in Sub-Saharan Africa by identifying critical thresholds.
  • Analyzed 35 Sub-Saharan African countries from 1990 to 2024 using Panel Threshold Regression and Temporal Graph Neural Networks.
  • Identified critical malnutrition thresholds and their effects on educational completion rates.
  • Conducted spatial analysis to find clusters of high vulnerability among nations.
  • Identified a critical malnutrition threshold at 4.37%, with effects on education intensifying above this level (β 2 = −1.847).
  • Below the threshold, lower secondary completion reduction was 0.31 percentage points (β 1 = −0.312).
  • Benefit-cost ratios for concentrated interventions ranged from 15:1 to 30:1, outperforming conventional education investments.

Cite This Study

Gannoun et al. (2026) studied this question.

synapsesocial.com/papers/69f6e62e8071d4f1bdfc6d8chttps://doi.org/10.3389/fnut.2026.1749392
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