Known cases / Breakfast Cereals / Dorset Cereals
Did Dorset Cereals Simply Nutty → Gloriously Nutty Muesli shrink?
560 → 500 g −10.7%Size Facts
Before560 g
After
500 g
Hidden unit-price rise at same price+12.0%
When2026
CountryUnited Kingdom
Price£3.80 → £3.96
Evidencetrade press (Assosia retail data; brand statement confirms some pack sizes were cut)
Confidencemedium
Source: The Grocer — Dorset Cereals muesli reformulation slammed by shoppers (15 Oct 2026) (thegrocer.co.uk). Source fetched 2026-10-19. Replacement product with a new recipe, not the same muesli in a smaller box. Dorset says it 'reduced some pack sizes' because of ingredient, energy and packaging costs. Check the math in the calculator or compare old and new unit prices.
What the source says
“site Other products in the new range have also shrunk and become more expensive on a per kg basis. Gloriously Nutty is 10.7% smaller than the old Simply Nutty, with pack sizes shrinking from 560g to 500g. The shelf price has risen by 4.2% in Asda, from £3.80 to £3.96, equating to a 16.7% increase in the price per kg compa”
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