We noted with interest the article published by Ladhani and colleagues¹ highlighting the problem of vitamin D deficiency. We agree that this remains a problem, especially in “at risk” ethnic minority groups.

In Oldham, which has a population of 49 992 children, 20.8% are Asians (Census 2001). Between December 2002 and March 2004, we identified nine cases of hypocalcaemia/rickets secondary to vitamin D deficiency. We excluded those with vitamin D deficiency secondary to other …