Hannah Ameye (Université de Bonn)

Hannah Ameye 
Université de Bonn, Center for Development Research

Résumé 

Adverse weather shocks deeply affect agricultural productivity and food security in Africa. Less is known on how climate shocks affect dietary quality and nutrient adequacy. This is particularly relevant in regions facing the triple burden of malnutrition. Using panel data spanning five years, we determine household food consumption and nutrient adequacy and assess how these are affected by geo-spatially linked weather data in Tanzania. Calorie, macro- and micronutrient consumption significantly reduces for households experiencing dry weather shocks. This is driven by a decline in the consumption of cereals, vegetables, nuts and seeds. Higher incomes and producing nutritious crops can boost nutritional resilience during these shocks, whereas subsistence farming is less effective. Conversely, households facing wet weather shocks – a much rarer occurrence – strongly increase protein, calcium, iron, zinc and vitamin B12 adequacy, mainly through a higher consumption of vegetables. Important disparities exist between rural and urban areas and across varying agro-ecological zones. Climate resilience and nutrition security demands integrated policies boosting sustainable food systems and nutritious diets.