About the Authors

Tanja Jaeggi

Tanja.jaeggi@hest.ethz.ch

Affiliation Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland

Diego Moretti

Affiliation Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland

Jane Kvalsvig

Affiliation University of KwaZulu-Natal, Durban, South Africa

Penny A. Holding

Affiliation International Centre for Behavioural Studies, Mombasa, Kenya

Harold Tjalsma

Affiliations Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands, Hepcidinanalysis.com, Nijmegen, The Netherlands

Guus A. M. Kortman

Affiliation Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands

Irma Joosten

Affiliation Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands

Alice Mwangi

Affiliation Department of Food, Technology and Nutrition, University of Nairobi, Nairobi, Kenya

Michael B. Zimmermann

Affiliation Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland

Competing Interests

The authors declare no competing financial interests. Harold Tjalsma is an employee of the Radboud University Medical Centre (Nijmegen, The Netherlands) that amongst others offers hepcidin measurements to the medical and scientific communities through a service unit called “hepcidinanalysis.com” on a fee per sample basis. This does however not alter the authors’ adherence to all the PLOS ONE policies on sharing data.

Author Contributions

Managed study site and sample collection: TJ JK PAH. Conceived and designed the experiments: TJ DM JK PAH AM MBZ. Performed the experiments: TJ HT GAMK IJ. Analyzed the data: TJ DM MBZ. Contributed reagents/materials/analysis tools: MBZ HT IJ. Wrote the paper: TJ DM MBZ.