There's a growing anxiety around avocados. With more awareness of their impact on the countries where they are grown, some chefs have been reducing their presence on menus. Are worries about their sustainability well-founded? Why do we focus so much on avocados and could we replace this contentious fruit with something else? Leyla Kazim meets chef Adriana Cavita at her new Mexican restaurant to talk about growing up with Avocados and how she has tackled the issue of their sustainability. Leyla talks to food systems expert and the writer of a forthcoming book on avocados Honor Eldridge about the issues in the production of avocados in the Global South. She also gets a mini tour of avocado trees growing in London from garden designer and tropical plant fan Rob Stacewicz. Political commentator Ash Sarkar talks to Leyla about avocado's status as a meme in our public discourse. Wahaca owner and chef Thomasina Miers makes an alternative for Leyla to try. Presented by Leyla Kazim and produced for BBC Audio in Bristol by Sam Grist