About the Authors

Christina Nyhus Dhillon

cnyhus@hki.org

Affiliation Helen Keller International-Tanzania, Dar es Salam, Tanzania

Hamsa Subramaniam

Affiliation Helen Keller International-Tanzania, Dar es Salam, Tanzania

Generose Mulokozi

Affiliation Tanzania Food and Nutrition Centre, Dar es Salam, Tanzania

Zo Rambeloson

Affiliation A2Z: The USAID Micronutrient and Child Blindness Project, AED (FHI360), Washington, DC, United States of America

Rolf Klemm

Affiliations Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America, A2Z: The USAID Micronutrient and Child Blindness Project, AED (FHI360), Washington, DC, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CN. Performed the experiments: CN HS GM. Analyzed the data: CN HS RK ZR. Contributed reagents/materials/analysis tools: CN GM. Wrote the paper: CN HS RK.