Micronutrient deficiencies like lack of iron, zinc, and vitamin A are a big health problem worldwide, especially in sub-Saharan Africa. Food fortification, adding these nutrients to food, is a good way to fight this issue. But it's expensive and needs special technology. This review talks about how fortifying foods with iron, zinc, and vitamin A can help people get more of these important nutrients. It also looks at how this could help reduce micronutrient deficiencies, especially in sub-Saharan Africa.