1 Department of Nutrition, Harvard T H Chan School of Public Health, Harvard University, Boston, MA 02115, USA; NOURISH Lab, Center for Health Inclusion, Research and Practice, Merrimack College, North Andover, MA, USA. Electronic address: jcohen@hsph.harvard.edu.
2 Department of Global Health and Population, Harvard T H Chan School of Public Health, Harvard University, Boston, MA 02115, USA.
3 The African Union Development Agency-New Partnership for African Development, Johannesburg, South Africa; Nutrition and Food Systems Division, Food and Agriculture Organization of the UN, Rome, Italy.
4 London School of Hygiene & Tropical Medicine, London, UK.