Sri Lanka Bans Import of Genetically Modified Food Agence France Presse COLOMBO, April 10 (AFP) - Sri Lanka has imposed a ban on genetically modified food pending more research on their effects on humans, a government official said Monday. The ban on genetically modified food went into effect from February 9 amid a debate in the West about the desirability of consuming such food, a health ministry official said. However, Sri Lanka will depend on certificates issued by food importers to impose the ban in the absence of sophisticated techniques to test gene-modified (GM) food. GM food is not produced in the island which imports large amounts of wheat and sugar.