McDonald's originated in 1940 and pioneered the fast food franchise model. It now has over 34,000 restaurants serving over 100 billion hamburgers in 119 countries. McDonald's dominated the fast food world through strategic expansion, product consistency across franchises, and an affordable family-friendly image. However, changing consumer preferences toward healthier options and saturated expansion have led to recent declines. The summary analyzes McDonald's rise to prominence and the strategies it can adopt to adapt to current market challenges.