by Jonathan Latham, PhD and Allison Wilson, PhD
Genetically engineered (GE) bacteria have been found in riboflavin vitamin supplements intended for animal feed use according to newly published EU tests.
Contamination of food grade or animal feed supplements with GE bacteria is illegal in the European Union. In 2014, however, a German enforcement laboratory alerted EU officials to illegal GE bacterial contamination of a riboflavin supplement intended for animal feed. Further tests showed that the illegal contaminating strain was not among those the manufacturer claimed to be using.