George Stella has a low carb recipe for ketchup. I have used this on induction just to get me through.
I used it sparingly and it didn't jeopardize my induction.
Quick and Easy Sugar-Free Ketchup:
8 ounces no-sugar-added tomato sauce
6 ounces no-sugar-added tomato paste
2 tablespoons white vinegar
1/4 cup sugar substitute (recommended: Splenda)
Mix all ingredients together in a small bowl. Refrigerate until ready to serve.
Yield: 1 1/2 cups
Nutritional Analysis per serving of ketchup:
Total Fat: 0
Saturated Fat: 0