Love Thai food? It might be thanks to a two-decade long policy on the part of the government of Thailand to promote its food culture abroad, with the express aim of increasing trade and tourism.

Ruth Alexander explores how food can be used as a foreign policy tool, influencing not just world leaders but seeking to win the hearts and minds of the public.

Academic Sam Chapple-Sokol at George Washington University in the US explains why gastro-diplomacy is such an effective tool for soft power.

Jan Wisansing, tourism policy consultant in Bangkok, explains the impact of the Global Thai scheme on international tourism to the country.

Ruth speaks to the owners of LumLum Thai restaurant in Copenhagen, Denmark, who have recently received a Thai SELECT award, an official endorsement from the government of Thailand.

And writer and historian Ali Domrongchai in the US talks about the impact of this approach on her own family’s Thai restaurant in Florida.

Producer: Beatrice Pickup. Reporter: Gideon Long in Bangkok

(Image: A plate of pad thai, said to be Thailand’s national dish, with Thailand’s flag in the background. Credit: Getty Images/BBC)