People with sensitivity to sulphites are being warned not to consume a certain brand of white grape juice sold by Loblaw Companies.

This after it was revealed that the 1.36-litre size of President’s Choice White Grape Juice contains sulphites which are not declared on the label.

The product, which has a best before date of April 17, 2014, has been distributed nationally in Loblaw banner stores.

Consumption of the product may cause a serious or life-threatening reaction in people with sensitivity to sulphites.

There have been no reported illnesses associated with the product.

The Canadian Food Inspection Agency is monitoring the effectiveness of the voluntary recall.