Complementary foods (CFs) commonly consumed by infants and young children (IYC) in sub-Saharan Africa (SSA) are processed using either single or multi-grain ingredients through simple technologies such as fermentation, malting and roasting. Interestingly, CFs (e.g., ogi, kunu, and dabo) are prepared and fed to infants alongside breastmilk until they are completely weaned up to the infant's second birthday. The grains used for preparing CFs can be contaminated with bacterial and chemical contaminants as a result of poor harvesting, handling or storage practices. The stage at which IYC are introduced to CFs is of utmost importance as it aids in addressing malnutrition and improving their overall health and well-being. Complementary feeding practices across SSA are influenced by socio-economic, cultural and geographical factors such that improper introduction can result in dire health consequences including immune suppression, severe foodborne diseases, poor child growth and development, and sometimes death from malnutrition. Malnutrition often occurs from inadequacies of nutrient intakes and assimilation which affect the ability to maintain normal body functions such as growth, learning abilities, resistance to and recovery from diseases. In SSA, IYC malnutrition still poses an enormous concern, therefore indicating the need for intervention strategies such as the promotion of indigenous crops and elevating traditional knowledge and technologies for formulating CFs. This paper clearly highlights the diversity of CFs in SSA, ingredients utilized, processing techniques, contamination by bacteria and chemicals, and demonstrates the consequences of consuming contaminated CFs, and their influence on IYC health as well as approaches to ensuring safety and scaling up indigenous CFs.
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