Although there have been no reports of anyone becoming ill, a customer with a nut allergy came close to sharing a helping of pudding at a Brumby's outlet, but noticed what they thought were nuts.

There was apparently no nutritional label on the pudding.

This prompted Victoria's Chief Health Officer, Dr Rosemary Lester, to warn people with nut allergies not to eat the Brumby's gourmet Christmas pudding, which is sold as a single serve or a larger 870 gram pudding.

However, Brumby's says it was an isolated incident at a single outlet.

"Since we were notified of the error we have contacted every Brumby's outlet," said Managing Director Kevin Waite in a statement.

He said it was critically important for all stores to ensure every menu item was sold with its nutritional information label.

The company's website lists the ingredients of products, and highlights that the gourmet puddings contain wheat, barley, egg, milk, soybeans, tree nuts, sulphites - and says they may contain peanuts.

AAP