Mock meat is not unhealthy per se. It can be a good source of protein. However, there are some kinds, such as imitation meatballs or imitation sausages, which are made of konjac [aka glucomannan, a bland, rubbery substance made from the tuber of a perennial plant called Amorphophallus konjac]. This type of product does not contain much protein and can only replace real meat in terms of taste, but not nutritional value. So before you choose mock meat, make sure you know what it's made from," Dr Anadi said.