In 1972, a food supplement used by soldiers during the Nigerian civil war was turned into a popular malt drink by a brewery in the Danish town of Faxe.
It was called Supermalt and it became so popular that the Nigerian government decided to ban all imports of malt into the country.
Peter Rasmussen created the drink and he has been sharing his memories with Matt Pintus.
(Photo: Supermalt. Credit: Royal Unibrew Ltd)