Most people know their recommended calorie intake per

Most people know their recommended calorie intake per day, says Bordier, but when it comes to our individual environmental footprint, "we just don't know how much we should consume". When it comes to effective language, using terms such as "vegan" and "vegetarian" on menus can actually be off-putting, says Bordier. "It's much more effectiveto talk to people about flavour."