The Eating Better Alliance, made up of 60 organisations, is aiming to halve meat and dairy consumption in the UK by 2030.
Teenagers who wanted to reduce their meat consumption said they required more meat-free options in school canteens, as they were not in control the shopping at home.
Rob Percival, head of policy at Soil Association, said: “This survey shows that teenagers are keen for schools to serve ‘less and better’ meat.
“The Government must use the ongoing update of the School Food Standards to re-balance school meals, getting more beans, pulses and plant proteins, and more sustainable, grass-fed and organic meat on the plate. We can’t shy away from the need to change diets if we’re serious about tackling the climate, nature and health crises.”
The Eating Better Alliance commissioned the research to investigate if eating habits were changing amongst teenagers in response to growing concerns around meat consumption and climate change.
Nearly two-thirds of the teenagers surveyed (63%) said the environment and climate change was more important than the UK leaving the EU (54%) and healthcare (42%).
Simon Billing, executive director of Eating Better, added: “We should all pay close attention to the two thirds of teenagers surveyed who recognise climate change as the biggest issue at present. Their increased awareness will impact the way they eat, shop and vote.”