...World’s largest producer of crop ...Product exported to UK, US, UAE Nigeria is a world beater in yam production. Yet, only little is known about the burgeoning industry. In 2018, the nation churned out 67 percent of the global yam output, according to the Financial Derivatives Company. Nigeria’s total yam output stood at 44 million metric tons that year, according to the Food and Agricultural Organization (FOA)’s data. By FOA’s estimate, which was also recapped by Africa Check,