You're going to get a lot of different opinions on this subject. The "problem" with most gravies is that they are thickened with flour or cornstarch, which is a no-no on Atkins. Now, there are some purists who refuse to eat any tiny amount of things such as flour (in gravies), sugar (in salad dressings), high fructose corn syrup (in ice cream), etc. Then there are those who think that as long as the carb count is low enough to reasonably fit in your daily allowance, it's an "OK" food.

I fall somewhere in between. I don't mind consuming a gram or two of sugar in condiments, but I wouldn't go eat the canned gravy. You can make your own gravy really easily with ThickenThin or Xantham gum as a thickener.

In the end, it's up to you how you want to handle this. It's your WOE, after all. I say make it work for you however you need to.