Estimated Effects of Future Atmospheric CO2 Concentrations on Protein Intake and the Risk of Protein Deficiency by Country and Region

BACKGROUND: ) contain less protein. Crops particularly affected include rice and wheat, which are primary sources of dietary protein for many countries. OBJECTIVES: emissions by 2050. METHODS: using global food balance sheets (FBS). We modeled protein intake distributions within countries using Gini coefficients, and we estimated those at risk of deficiency from estimated average protein requirements (EAR) weighted by population age structure. RESULTS: . In India, an additional 53 million people may become at risk. CONCLUSIONS: may widen the disparity in protein intake within countries, with plant-based diets being the most vulnerable. https://doi.org/10.1289/EHP41.