New York | The Impossible Whopper sold at Burger King – with the tagline "100 per cent Whopper, 0 per cent beef" – looks just like a juicy beef burger.

It is made of 21 ingredients, according to its website, including genetically modified soy protein concentrate, coconut oil, sunflower oil and other items most people have never heard of, such as cultured dextrose, soy protein isolate and zinc gluconate.