Study	Reason for exclusion
Grace 2015	Ineligible study design
Hoffmann 2018a	Ineligible intervention. Study authors confirmed via email correspondence (see Hoffmann 2018a) that a general agricultural education programme was implemented in both intervention and control villages, primarily aimed at farmers to raise their awareness of basic prevention measures to prevent contamination of food crops with aflatoxins. Study authors described this programme as the 'standard of care' for communities at high risk for exposure to aflatoxins, and thus, the education was the same in both groups. In addition, the intervention villages had their contaminated maize replaced with uncontaminated maize.
IFPRI 2017	Ineligible intervention: intervention aimed at reducing the accumulation of aflatoxins in food crops during pre‐harvesting period (biological control with non‐toxic strains of A. flavus ‐ Aflasafe)
IITA 2016	Ineligible intervention: intervention aimed at reducing the accumulation of aflatoxins in food crops during pre‐harvesting period (biological control with non‐toxic strains of A. flavus ‐ Aflasafe)
James 2007	Ineligible study design
Kuchenbecker 2017	Ineligible intervention: intervention described by study authors as a nutritional education programme to increase dietary diversity of infants and young children, but did not include any specific educational component aimed at reducing their intake of aflatoxins
Mamiro 2004	Ineligible intervention: intervention did not include any educational component; described by study authors as the administration of a processed complementary food to infants
NCT03940547	Ineligible intervention: study protocol stated that both Intervention and control groups would receive infant and young child feeding (IYCF) education (no specific educational component aimed at reducing their intake of aflatoxins). Children in the intervention group would receive a very low‐aflatoxin blended porridge flour.
Nyanga 2017	Ineligible study design
Seetha 2018	Ineligible duration of follow‐up
SHINE 2015	Ineligible intervention: intervention described by study authors as an Infant and young child feeding (IYCF) intervention, but did not include any specific educational component aimed at reducing their intake of aflatoxins
Smith 2015	Ineligible study design
Turner 2005	Ineligible study design
Xu 2017	Ineligible study design