Ethical approval for the research was approved by the University of Central Lancashire STEMH Ethics Committee (reference number: STEMH 1014, date: 30 August 2019) in the UK and Khyber Medical University Ethics Committee (reference number: DIR/KMU-EB/BZ/000628, date: 7 May 2019) in Pakistan. All data collected was anonymised and stored on secure servers, with data protection protocols followed when information was shared between participating institutions. Refer following articles for further details:

1. Lowe NM, Zaman M, Moran VH, et al. Biofortification of wheat with zinc for eliminating deficiency in Pakistan: study protocol for a cluster-randomised, double-blind, controlled effectiveness study (BIZIFED2). BMJ Open. 2020;10(11):e039231. Published 2020 Nov 18. doi:10.1136/bmjopen-2020-039231

2. Gupta S, Zaman M, Fatima S, et al. The Impact of Consuming Zinc-Biofortified Wheat Flour on Haematological Indices of Zinc and Iron Status in Adolescent Girls in Rural Pakistan: A Cluster-Randomised, Double-Blind, Controlled Effectiveness Trial. Nutrients. 2022;14(8):1657. Published 2022 Apr 15. doi:10.3390/nu14081657