Is there a sauce for salad or tuna that has no carbs?

Mayo, finely chopped dill pickle. finely chopped onion, mustard, and a bit of cocktail sauce.... mix together. This is GREAT on tuna. As for a salad dressing, I make my own.... olive oil, lemon juice, vinegar, stevia ( non calorie non chemical sweetener), garlic powder, celery seed... what ever herbs/spices you prefer. I also make my own version of ranch dressing... I do not like the fact that MSG is added to most ranch dressing. I use 1/2 cup mayo, 1/2 cup sour cream, 1 small carton of buttermilk..... mix together. Add 1 teaspoon lemon juice, and add garlic powder, dill, chives, onion powder, salt, pepper... I like mine with a bit more garlic, but add these to taste. It has no carbs, and is better ( in my opinion) than store bought.