McDonald's is the world's largest restaurant chain. In 2002, overweight children in New York filed a lawsuit against McDonald's claiming that consuming their products led to obesity and related health issues. The plaintiffs argued that McDonald's engaged in deceptive advertising and failed to warn consumers about the dangers of their food. They claimed McDonald's food contained additives that created health hazards. The case was narrowed to these two allegations. For the plaintiffs to win, they would need to prove McDonald's food caused their obesity and harm would not have occurred with adequate warnings. While the case did not succeed, it motivated McDonald's to make some changes like providing more nutritional information and removing trans fats. Litigation against fast food companies could force them to