It is a favourite nut of the US and Europe. But the cashew is at the centre of a global row over western retailers' profits and the low pay and harsh conditions experienced by the farmers and processors.
Joining presenter Lucy Lamble in the studio are Fiona Gooch, senior policy adviser at Traidcraft, and Felicity Lawrence, Guardian investigative reporter and author of Not on the Label.
Sir Jim Paice, Conservative MP for South East Cambridgeshire, and former UK minister of state for agriculture and food, explains the role of the UK's recently appointed first supermarket ombudsman.
Given the labour conditions in the sector, what should be done to make the supply chain more fair but still viable? What is the role of the European Union in addressing unfair trading practices? And should consumers around the world still buy cashews?