Maddy Diment is a Lead Researcher at Tortoise, working in the Intelligence Team on The Better Food Index and Responsibility100. She studied Geography at Oxford University, and has since worked in consulting, academia and corporate social responsibility.
Maddy Diment
Lead Researcher
“Tortoise is serious about holding power to account. I am convinced that sharp, slow and data-driven analysis is the best way to do that.”
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Friday 26 May 2023
Greed and hunger: how Britain’s food system really operates
It’s time to acknowledge the reality – junk food has always been in great supply
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Wednesday 24 May 2023
Seven out of ten food items from Britain’s biggest producers are ultra-processed
Seven out of ten food items in a representative UK sample were “ultra-processed”, which means it’s probably bad for you even if it tastes good.
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Tuesday 23 May 2023
The Better Food Index 2023
One year on, has sustainability progress been made in the biggest UK food & drink companies?
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Monday 22 May 2023
Counting carbs
The food system needs to change drastically if the world is to reach net zero. Emissions reporting by food companies is improving – but not fast enough.
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Friday 12 May 2023
The health imperative
Nearly seven in ten FTSE 100 firms provide some form of private healthcare for employees. Is it the responsible choice?
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Thursday 15 December 2022
The Readout: How do you build a fairer world in an era of polycrisis?
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Tuesday 13 December 2022
Sensemaker: A seat at the table
What just happened
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Thursday 17 November 2022
Sensemaker: Footsie falls short
What just happened
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Thursday 17 November 2022
The Responsibility100 Index: The findings
The Responsibility100 Index assesses FTSE 100 companies on their actions and commitments toward a more sustainable future. Here’s what we found in our 2022 update
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Thursday 10 November 2022
The dairy dilemma: what needs to change and why?
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Tuesday 9 August 2022
Wasting time
How the UK’s food giants are missing their food waste targets.
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Thursday 30 June 2022
10 minute read
Sensemaker Special: The price of chicken
What just happened
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Thursday 30 June 2022
Launching the Tortoise Better Food Index
Cheaper food doesn’t always mean better food. Products that cost less in monetary terms often have a higher cost elsewhere. The Tortoise Better Food Index – a ranking of food companies based on environmental, health and transparency metrics – aims to make the true cost of what we eat more visible
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Tuesday 28 June 2022
What the food industry isn’t telling us about carbon emissions
Food is the second biggest emitter of manmade greenhouse gases. But many UK food companies don’t reveal the scale of their supply chain emissions.
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Thursday 28 April 2022
10 minute read
Sensemaker: Anonymous food
What just happened
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Tuesday 23 May 2023
Ultra-processed food
The largest food and drink producers in the UK are dependent upon selling ultra-processed food. What’s the cost and why does it matter?
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Monday 28 November 2022
Big pay for big bosses
The chief executives of the UK’s biggest listed companies have seen their pay soar. On average, they were paid 30 per cent more this year compared to last year. What’s driving the increase?
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Tuesday 19 July 2022
The end of cheap chicken
Chicken is the UK’s favourite meat and that’s partly because it’s cheap. Per kilo it costs less than a pint of lager. But it looks unlikely that prices can stay that low. Why is the cost of chicken rising?