We report here a case of severe iron deficiency anaemia resulting from prolonged exclusive milk diet without any iron supplementation. The patient was a 1112 year old boy, the only child of a factory worker, who was breasffed until 4 months of age followed by exclusive feeding by non-fortifiedformula. He presented with severe iron deficiency anaemia with haemoglobin of4 .0g% and required blood trans-fusion. Iron and.vitamin supplements were given and cereals were slowly introduced. He responded very well to the treatment with satis-factory weight gain and improvement of anaemia. (Copied from article).