Mayo. 

Walden Farms Calorie Free Sweet and Tangy Amazing Mayo contains no calories, fat, carbs, gluten or sugars of any kind! Walden Farms Miracle Mayo is made with lemon juice, cider vinegar and natural fresh flavors. Switch & Save 330 Calories a Day. Lose 34 Pounds a Year "The Walden Way". Great Taste, No Calories! Rich Natural Flavors. 100% Guaranteed. Switch & Save up to 600 calories preparing tuna, egg, chicken, macaroni or potato salad! Delicious on sandwiches or use to make your favorite dip. Switch and save hundreds of calories every time, "The Walden Way."