Two Warburtons' fruit loaves - orange and cinnamon and raisin - have been certified as kosher by the KLBD.

They are the latest of a wide variety of certified products from the baking firm, among them the new bagel range which has divided Jewish opinion.

A KLBD spokesperson said: “We are delighted to approve another Warburtons product, in addition to the many others already KLBD certified.”

The kashrut authority has also added Weetabix with Red Berries to its certified list.