There has been a growing interest in the non-skeletal roles of vitamin D particularly its immunemodulatory properties which has been shown to influence the susceptibility and severity to infections. There is insufficient data globally on the association between Vitamin D levels and Diarrhoea in children. | Association of vitamin D and diarrhoea in children aged less than five years at Muhimbili national hospital, Dar es Salaam: An unmatched case control study