LowCarbRN, there are carbs in everything that isnt a lean meat or a fat (with the exception of water, I guess ) You'll run into this 0g of carbs issue a lot living south of the border. The current laws in the US permit a manufacturer to label something as 0g of carbs if a single suggested serving of the food contains less than 1g of carbs. Heavy Cream has .6g per tablespoon - using 5 or 6 tbsps adds up. When in doubt check with a trusted carb counter (either the one on this site, or something like Corrine Netzers "Complete book of food counts")

That being said, whether or not milk products are a staller for you is someting only you can say. Many of us enjoy cream in our coffee and use it in baking - for others it's a known staller. You'll have to experiment to find out.

HTH
Nat