Known cases / Breakfast Cereals / Post
Did Post Premier Protein cereal shrink?
11 → 9 oz −18.2%Size Facts
Before11 oz
After
9 oz
Hidden unit-price rise at same price+22.2%
When2025
CountryUnited States
Evidencenews / advocacy report
Confidencehigh
Source: Mouse Print*, Winter 2026 pt 2 (mouseprint.org). source fetched 2026-10-14. Check the math in the calculator.
Post products we track
- Breakfast Cereals
Post grape-nuts cereal
Net wt.20.5 OZ (1 LB 4.5 OZ) 581 g
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