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The hidden cost of ultra-processed foods on the environment: ‘The whole industry should pay’
Key Excerpts from Article on Website of The Guardian (One of the UK's Leading Newspapers)

Photograph: ULRO/Getty Images

The Guardian (One of the UK's Leading Newspapers), October 8, 2025
Posted: October 25th, 2025
https://www.theguardian.com/environment/2025/oct/08/ultra-pr...

There are 34 ingredients in M&Ms, and, according to Mars, the company that produces the candy, at least 30 countries – from Ivory Coast to New Zealand – are involved in supplying them. Each has its own supply chain that transforms the raw materials into ingredients – cocoa into cocoa liquor, cane into sugar, petroleum into blue food dye. The environmental impact of ultra-processed foods – like M&Ms – is less clear and is only now starting to come into focus. One reason they have been so difficult to assess is the very nature of UPFs: these industrially made foods include a huge number of ingredients and processes to put them together, making it nearly impossible to track. Since 1850, agricultural expansion has driven almost 90% of global deforestation, which has been responsible for 30% of global greenhouse gas emissions. Getting an exact measure of the environmental toll of UPFs is nearly impossible, given that, definitionally, UPFs consist of many ingredients and a high volume of opaque processes. Ingredients aren’t just mixed together like one would do to make a stew at home. Instead, these ingredients are chemically modified, some parts stripped away, and flavors, dyes or textures added in – and it’s unclear what the cost of these processes are because so many suppliers and components are involved. Another reason is that all UPFs (again, definitionally) are the creations of food companies that have little incentive to disclose their environmental footprint.

Note: For more along these lines, read our concise summaries of news articles on food system corruption and climate change.


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