Ketchup
One of the most widely used condiments in the world is ketchup. Ketchup goes with just about everything—French fries, eggs, hash browns, burgers, deli meats...the list goes on and on. But like BBQ sauce, it frequently contains a lot of sugar.
When using ketchup, try to be cautious of your portion size and keep in mind that a single tablespoon has almost 1 teaspoon of sugar in it. Adding just a tablespoon of ketchup to your burger could result in a teaspoon of extra sugar. Check the ingredient list of ketchup to see if it has no added sugars. Additionally, you can choose a brand where the sweetener appears near the end of the ingredient list, indicating that little sugar has been added (because food ingredients are listed in order of their abundance in the recipe from high to low).