Kellogg has recalled boxes of Crunchy Nut cereal following a small number of complaints from customers of an unusual taste from some packs.

There is no risk to health and the tainted taste was a quality issue and not a food safety issue, the Food Standards Agency said.

The affected product is Kellogg's Crunchy Nut cereal with best before dates of 21 June 2008 to 31 July 2008.