This week is Meat Free Week, a campaign backed by the Australian Conservation Foundation, Voiceless and Bowl Cancer Australia to encourage people to consider the consequences of meat consumption.

But considering most Australians still consume animal protein, Bush Telegraph has asked experts to try and rank products on our supermarket shelves from an animal welfare perspective.

Professor of animal welfare Clive Phillips and the RSPCA's Melina Tenson explain how they asses the ethics of meat production.

Clive Phillips Professor of animal welfare at the University of Queensland.

Melina Tenson, RSOCA scientific officer.