McDonald's is rethinking its strategy after losing 500 million U.S. orders over the past five years. The fast-food chain had aimed to widen its customer base by chasing after health-conscious consumers who rarely eat there. But a customer survey conducted last year revealed it was losing customers to other fast-food chains, not to fast-casual restaurants serving healthier food. That's why it has decided to embrace its fast-food identity and focus on its core products. Critics have longed urged McDonald's to focus on its core customers, but McDonald's had added more salads, snack wraps, and oatmeal to its menu in hopes of drawing health-minded customers. Recently, the chain pulled many of those slow-selling products. Interestingly, Burger King similarly attempted to appeal to a broader, more health-conscious customer base in recent years, but it didn't work for them either. McDonald's will now focus on improving the quality of its food to keep existing ...