Swapping Steak for Salmon Could Boost Health and Reduce Emissions

Replacing a beef steak with salmon once a week could meaningfully cut the UK's food-related carbon footprint while supporting health, says researchers from Bristol and Southampton. The study uses data from 4,000 UK households in the Family Food Dataset and models outcomes from 2021 to 2050 across five dietary scenarios. Under Business as Usual, emissions fall 15% by 2050, equivalent to a Heathrow–Madrid round trip (2,486 km). Swapping beef for salmon weekly reduces emissions by 28%, about the Heathrow–Marrakech flight (4,583 km). Lead author Dr Jenny Baverstock emphasizes that such swaps offer health and environmental benefits.