i dont know if uve ever used frylight (spray oil i a can one cal per spray). well they now do a saladlight (balsamic dressing in a spray). it has one calorie per spray and only trace of carbs. i used it for the first time a few days ago and it was lovely. took 3 sprays to add flavouring to 2 whole lettuce leaves and it was yummy, only 3 calories