I’m glad that the impact of ultra‑processed food on the climate is being investigated. Not only is it bad for our health but it also requires ingredients to be transported around the world (The hidden cost of ultra-processed foods on the environment: ‘The whole industry should pay’, theguardian.com, 8 October).
Meat and dairy are often singled out as foods detrimental to the environment. While it’s laudable to encourage people to reduce their intake of animal-based foods and eat more vegetables, nuts and grains, many of these have also to be transported great distances and so contribute to increased CO2 levels.
The Scottish lamb I buy grazes on ground unsuitable for agriculture, is slaughtered near the farm and travels about 100 miles to my plate.
Dr Kirstine Oswald
Bonnyrigg, Midlothian
