Did ASDA tender chicken breast mini fillets shrink?

Size FactsDid it shrink? Yes
Before650 g
After600 g
−7.7%smaller
Price per 100 g · observed+9.0%Shelf price £4.97 → £5.00, as recorded by the source.

Before you paid £0.76 per 100 g; after, £0.83 per 100 g: 9.0% more for the same amount.

How big a cut? The 39th-largest of 45 documented meat & fish cuts; a bigger cut than 18% of all 1,366 cases in the library. See the biggest cuts →

When
2026 · reported 31 May 2026
Country
United Kingdom
Brand
ASDA
Category
Meat & Fish
Source
allsupers.co.uk

Source and evidence

ASDA Tender Chicken Breast Mini Fillets 600g: 650 g → 600 g — Shrinkflation | Allsupers | Allsupers allsupers.co.uk

Source fetched 2026-10-21. All 59 Allsupers cases.

Found by Allsupers' automated check of ASDA listings: the old listing disappeared and a smaller pack of the same product appeared (new pack since 31 May 2026); regular price £4.97 before, £5.00 after.

Evidence
Typeautomated supermarket price tracker (Allsupers register; retailer listings, regular prices recorded)
Confidencemedium
Size cut alone, at the old price+8.3%

Check the math in the calculator or compare old and new unit prices.

Against official inflation: ONS CPI (UK) “meat” changed +2.3% (12 months to May 2026, a broad match for this category). This pack’s price per gram changed +9.0%, 6.7 percentage points above the official rate, using the shelf prices the source recorded. Every case is compared the same way in the ShrinkRadar Index.

What the source says

“Before: ASDA Tender Chicken Breast Mini Fillets 650g (ASDA), size 650 g, regular price £4.97, price per unit £7.65/kg. Now: ASDA Tender Chicken Breast Mini Fillets 600g (ASDA), size 600 g, regular price £5.00, price per unit £8.33/kg. First detected: 10 June 2026. New pack since 31 May 2026.”

More from the UK: the UK Shrinkflation Tracker has all 175 documented cases, sortable and filterable.

Topic guide: meat and fish shrinkflation, every documented case in one place, brand by brand.

More from ASDA

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Cite this case

ShrinkRadar, “Did ASDA tender chicken breast mini fillets shrink? 650 g → 600 g”, https://shrinkradar.com/cases/asda-tender-chicken-breast-mini-fillets-uk-2026.html, accessed 2026-11-05. Original source: ASDA Tender Chicken Breast Mini Fillets 600g: 650 g → 600 g — Shrinkflation | Allsupers | Allsupers (https://allsupers.co.uk/research/shrinkflation/ean_swap/5100).

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