Field Notes is our new ‘quick listens’ podcast series that delves into some of the critical issues in food, farming and land use – and the radical and practical solutions at hand.

In this episode, Dr Dolly van Tulleken her latest report on why successive governments have failed to act on the food-related health agenda, how fears of being labelled "nanny state" have derailed progress, and the ingredients for policy change success.

In her work, Dolly found that despite hundreds of policies being proposed since the 90s, there has been no real decrease in food-related ill health. She asks: What is it that's stopping politicians from affecting change? And how can they progress the food-related health agenda effectively?

Drawing on interviews with 20 prime ministers, health secretaries, and other senior politicians, Dolly covers:

• The background to her and Henry Dimbleby's report, 'Nourishing Britain'
• The main barriers that politicians face when implementing food policy change - including fears of nanny state accusations
• The four ingredients for success to create meaningful policy change - such as the ability of policitians to make a compelling argument on a particular issue

Listen in full below: