>>11418440By definition a hamburger is a disc of meat or a meat substitute ergo a hamburger must have calories because it's a defining characteristic of it
A 0 calorie food would need to be made of something that the body can't digest such as cellulose
For flavoring you could use salt which the body can't use as fuel
The whole concept of "0 calorie" food is plain retarded. The only things you can consume that are 0 calories are water and some minerals that are present in food. If it's food it has calories, if it has calories it's food. 0 calorie food is an oxymoron and you are retarded OP