Beginning a petition on Change.org, Shutters called out food manufacturing corporation Mars, for their use of synthetic food dyes in M&M’s. Simultaneously, in 2008 the European Union announced their plan to add warning labels to all food products that contain artificial food coloring. In 2010, warning labels reading “May have an adverse effect on activity and attention in children” were successfully implemented. Possibly in an attempt to avoid the requirement of warning labels, some companies have actually changed their ingredients in the EU. “Toxicology of food dyes.” n.d. PubMed.