Hidden hunger is characterized by chronic deficiency of essential vitamins and minerals (micronutrients). It is particularly severe in sub-Saharan Africa (SSA), where many people do not consume enough essential micronutrients to lead healthy and productive lives. This is especially true among poor, rural, and other vulnerable populations. Most women of reproductive age, infants, and young children in SSA countries suffer from deficiencies in vitamin A, iodine, iron, zinc, and folate.