Dan Saladino finds out why a UN summit to transform the global food system has become so controversial. It has generated 2500 ideas for change but also a boycott by protesters.

In 2019 the UN's Secretary General António Guterres highlighted ways in which the global food system was breaking down: hundreds of millions of people going hungry, billions more overweight or obese and tonnes of food being wasted. These problems were also obstacles in the way of reaching the 2030 target for the Sustainable Development Goals which includes zero hunger. This year's food systems summit was designed to find solutions to these problems.

This week in Rome the ideas generated by the millions of people who have engaged in the process will be set out ahead of the summit in New York in September. But the involvement of some of the world's biggest food corporations has led to concerns over the direction of the summit, and of the global food system itself.

Produced and presented for BBC Audio in Bristol by Dan Saladino.