Avoidant restrictive food intake disorder (ARFID) is a persistent feeding or eating disturbance manifested by avoidance of food or restrictive food intake that is not caused by food scarcity, cultural or religious practices, or some other psychological or medical disorder. It is an identifiable cause of undernutrition and micronutrient deficiency in children which has been poorly reported in developing countries including Nigeria. This burden of ARFID however, has been reported in developed countries. The awareness of its existence is still poor among child health care practitioners, and its prevalence also is unknown in Nigeria and other African countries.