About Nesta

Nesta is a research and innovation foundation. We apply our deep expertise in applied methods to design, test and scale solutions to some of the biggest challenges of our time, working across the innovation lifecycle.

Challenge and goal

Everyone deserves to live a long and healthy life, yet around two- thirds of UK adults are living with excess weight and obesity, increasing their risk of developing a range of chronic health conditions such as cancer and diabetes. Additionally, UK levels of childhood obesity are among the highest in Europe, affecting one in five primary school children. Beyond the human impact, obesity costs the NHS over £12 billion annually and reduces UK economic productivity by £31 billion.

This doubling of obesity rates over the last 30 years is not due to a loss of collective willpower, but driven by changes in our food environment: how our food is advertised, promoted, and displayed, priced and how convenient it is to buy. Our surroundings drive us to over-consume unhealthy food and drink, even though almost all of us want to eat well and be healthy. To turn the tide on obesity, we need governments to take urgent action.

"Obesity is the public health challenge of our generation, but it doesn't have to be. We have the research and evidence to know what actually works. Halving obesity is a tractable issue, but to do it policymakers need to act urgently and introduce regulation to help make our food environment healthier."

Mission resources

Highlights and key content from the healthy life mission

Healthy food standard
Our work on the healthy food standard and how mandatory health targets on large food businesses offer a visionary path to halve obesity
Weight loss treatment and medications
Our work on GLP-1 based weight-loss medications and why expanded equitable access to effective treatment should go hand in hand with long-term action to reshape the food environment
How to fix our broken food system

Listen to our podcast with healthy life mission director Hugo Harper and obesity and food policy expert Dr Dolly van Tulleken

Mind the gaps: why restrictions on less healthy food and drink advertising fall short
Exploring the changing face of food and drink advertising
Estimating the economic and productivity costs of obesity
We commissioned Frontier Economics to estimate the cost of obesity and excess weight to our economy
How health targets for supermarkets could reduce childhood obesity
The government’s healthy food standard, announced in 2025, is one of the most ambitious policies to date to tackle obesity
Nesta and Asda retail innovation partnership
A joint report on what we learned about health in food retail

Blueprint for halving obesity

Our toolkit to support the design, implementation and scaling of dietary health policies that are most likely to work.

Explore the toolkit

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Keep up to date with our healthy life mission with dedicated content fro the team