In 2018, 32% of children under five were found to be stunted and nearly 20% were underweight.
Besides a lack of basic protein and energy, the immediate causes of undernutrition include deficiencies in micronutrients, such as vitamin A, iron, iodine and zinc.
Women and girls also experience high rates of malnutrition, with 58% of women found to be anaemic.
Nigeria is experiencing a double burden of malnutrition, where undernutrition, including micronutrient deficiencies, exists alongside overweight, obesity and diet-related non-communicable diseases.
Underlying causes of malnutrition in Nigeria include poor infant and young child feeding practices, inadequate access to healthcare, water and sanitation, and a high level of poverty.