UK Supermarket Shakeup 2025: Tesco, Sainsbury's, and M&S Respond to Changing Shopper Habits

In 2025, UK supermarkets are transforming—Tesco and Costco gain market share, Sainsbury’s cuts 3,000 jobs, Asda restructures, and M&S invests £140m in new foodhalls. Gen Z shoppers shift preference, own-brand loyalty drops, and food waste tops consumer concerns. M&S ranks highest in customer satisfaction.