how many calories in the impossible whopper with no mayo?
The Impossible Whopper comes in at 630 calories (again, half from fat), 34 grams of fat, and 25 grams of protein. The Impossible Whopper does have significantly lower cholesterol — 10 milligrams compared to 90 milligrams — but has more sodium at 1,240 milligrams compared to 980 milligrams.