Grass-fed beef and lamb would become the UKs staple meats if the country were to switch to 100 per cent regenerative farming, a new report has found.
Dairy and eggs would also remain a part of peoples diets, along with more fruit and vegetables, but chicken and pork production would have to be cut by 75 per cent.
The Sustainable Food Trust (SFT) report, Feeding Britain From the Ground Up, said grain production would have to halve due to a phase out of chemical inputs and less land being used for intensive crop production.
This would have a knock-on effect on the chicken and pork sectors, with much less grain available to be fed to livestock.
But production of fruit and vegetables would double, as would the amount of pulses.
The group has billed its report as an alternative food strategy.
Patrick Holden, chief executive of the SFT, said: With the current cost of living crisis and rising world hunger and food shortages, supercharged by the way in Ukraine, we face a choice in how to ensure national food security while also addressing the urgent issues of climate change, nature loss and human health.
We can either double down on industrial farming to produce food that is bad for our health, the environment and food security, or we can turn this crisis into an opportunity to accelerate more sustainable food and farming and, ultimately, ensure everyone has access to healthy, sustainable food.
Today, food and farming are part of the problem, but we believe they could be a big part of the solution if we make the right choices in the coming months and years.
The report, which provides detailed modelling on how diets would need to change with a complete switch to regenerative farming, also said there was no need to follow a land sparing agenda, where food is produced intensively on the best land to set more aside for nature.
Instead, it suggests farming in harmony with nature as well as increasing the amount of land for woodland creation in line with Climate Change Committee recommendations, by integrating more trees into the farmed landscape and through agroforestry.
