Another low-carb item available at Loblaws...they now have as part of their Blue Menu a sucralose-sweetened ketchup which comes to 5 calories and 1g of carbs per tablespoon.

I've tried it and it is the best low-carb ketchup I've tried so far, and it is very reasonably priced. I think it is $1.99 for about 400 or 500ml bottle.