Salmon is often marketed as the sustainable, healthy and eco-friendly protein choice. But what you may not realise is that most of the salmon you buy is farmed, especially if you live in the UK, because Scottish salmon producers are no longer required to tell you.

Josh Toussaint-Strauss finds out why it is important for consumers to know where their salmon comes from, and examines the gap between the marketing of farmed salmon and the reality for our health, the environmental and animal welfare

• Scottish government must do more to control salmon farming, inquiry finds

• Scottish salmon producers allowed to remove ‘farmed’ from front of packaging

• Norway rules out fish farm ban despite ‘existential threat’ to wild salmon