Heinz led Bernardo Hees previously ruled Burger King, the main competitor of McDonald's. This was the reason for rejection of ketchup, without which it is difficult to imagine the majority of fast food snacks.
Searching for a new supplier of sauces - not an easy task. And habit - only one side of the issue. Although McDonald's has had to live without Heinz. The company appealed to other companies, when a poor harvest tomatoes greatly reduced the volume of produced legendary ketchup. By the way, Heinz is mainly used in fast food restaurants abroad, and the transition to the products of other brands will be gradual.