Studies	Service delivery	Health workforce	Health information systems	Access to essential medicines/supplies	Financing	Leadership/governance
Agarwal et al. (2003)	Delivery of iron supplements in school	Probably through school teachers	Not specified	Iron supplements were provided by researchers	UNICEF, New Delhi	Researchers
Chiplonkar and Kawade (2012)	Delivery of food supplements and zinc tablets in school	Probably through school teachers	Not specified	Food supplements and zinc tablets provided by researchers	Zensar Foundation, Pune, India	Researchers
Februhartanty et al. (2002)	Delivery of iron supplements in schools	Delivered through school teachers	Not specified	Iron supplements were provided by researchers	SEAMEO‐TROPMED Regional Center for Community Nutrition in Jakarta	Researchers
Goyle 2012	Supplement biscuits in schools	Probably through school teachers	Not specified	Biscuits were supplied through researcher	University Grants Commission, New Delhi, India	Researchers
Hettiarachchi et al. (2008)	Iron and zinc supplements provided in schools	Delivered through teachers and investigators	Not specified	Supplements were provided by the researchers	The study was funded by the International Atomic Energy Agency	Researchers
Hyder et al. (2007)	Iron fortified beverage provided in school	Delivered through schoolteachers with the assistance of the BRAC community health workers	Not specified	Supplements were provided by the researchers	Supported by the Micronutrient Initiative, Ottawa, Canada	Bangladesh Rural Advancement Committee (BRAC, one of the largest national nongovernmental organizations in the world) who were the researchers
Khadilkar et al. (2010)	Vitamin D supplement were provided in school	The tablets were supplied to participants monthly by trial staff	Not specified	Supplements were provided by the researchers	Not specified	Researchers
Sen (2009)	Iron supplements were provided in schools	Investigators, monitors, class teachers	Not specified	Supplements were provided by the researchers	None	Researchers
Soekarjo et al. (2004)	Vitamin A, iron and folate supplements were provided in the schools	Field workers supervised the supplement intake	Not specified	Supplements were produced locally and provided by the researcher	This study was funded by USAID through the OMNI project	Researchers
Zhu et al. (2005)	Milk supplementation given in schools	Probably through school teachers	Not specified	Milk supplementation given in schools provided by the researchers	Australian Dairy Research and Development Corporation, Murray Goulburn Co‐operative Co. Limited (formulated and produced the milk supplements) and the Nestle' Foundation provided financial support for the laboratory analyses	Researchers