Why Whole Foods is 60% pricier than Walmart for the same eggs

Same brand. Same SKU. Different aisle. Different country. Different price by 30-200%. CostMyMeal computed the spread — here's why.

The big spreads

• Whole Foods vs Walmart (US, eggs): $0.55 vs $0.30/piece. +83%.
• Coupang Fresh vs Homeplus (KR, kimchi): ₩900 vs ₩750. +20%.
• Mercadona vs Lidl (ES, olive oil): €0.95 vs €0.85/100ml. +12%.
• Chedraui vs Walmart MX (chorizo): MX$16 vs MX$13. +23%.

The premium tier is 20-80% more across the board. Why?

Three drivers

1. Cold chain & sourcing: Whole Foods sources organic eggs from farms ≤200mi away. Walmart ships from anywhere with a freezer. Cold chain alone adds 15-25%. 2. Store positioning: Trader Joe's stocks ~4,000 SKUs vs Whole Foods' 30,000. Smaller catalog = better per-unit purchasing power = lower price for the items they carry. 3. Discount-store loss leaders: Lidl and Walmart price stable items (eggs, milk, oil) at near-cost to drag you in. They make margin on chips and shampoo.

The smart-shop pattern

Don't be loyal. Be predictable:

• Eggs, milk, butter, salt, sugar, basic oil → cheapest discount chain (Walmart, Lidl, E-mart).
• Specialty cheese, cured meats, premium produce → premium chain only when needed.
• Asian/Latin specialty → ethnic stores often beat all of the above by 30%.

CostMyMeal's per-supermarket variants for each dish make this concrete. Open any dish, toggle supermarket, watch the cost drop $1-3 per serving.