Policies and programs often aim to improve the affordability of nutritious diets, but existing food price indexes are based on observed quantities which may not meet nutritional goals. To measure changes in the cost of reaching international standards of diet quality, we introduce a new Cost of...

Height-for-age z-scores (HAZs) and stunting status (HAZ−2) are widely used to measure child nutrition and population health. However, accurate measurement of age is nontrivial in populations with low levels of literacy and numeracy, limited use of formal birth records, and weak cultural norms...

Policies and programs to improve global nutrition increasingly aim to improve diet quality through systemic change in food environments, often focusing on the availability and price of diverse food items. Almost all of the world’s governments conduct nationally representative surveys of retail...

Rapid increases in food supplies have reduced global hunger, while rising burdens of diet-related disease have made poor diet quality the leading cause of death and disability around the world. Today’s 'double burden' of undernourishment in utero and early childhood then undesired weight gain...