MedSys / Food & product safety / Supermarkets

UK supermarket rankings

Retailer policy sets the floor for everything on the shelf. Where a supermarket bans a pesticide or demands traceability, every own-brand product improves at once — which makes the choice of shop a bigger lever than the choice of any single item.

Full guide Brand database

1 M&S Joint Best Overall

1 Waitrose Joint Best Overall

3 Co-op Good — banned pesticide products

4 Sainsbury's Above average — pole-line tuna

5 Tesco Average

6 Morrisons Below average

7 Asda Low — sells high-risk pesticides

8 Aldi / Lidl Lowest transparency

Ranking the policy, not the prices. This reflects published pesticide standards, own-brand specifications and traceability commitments. It is not a judgement on value, and a strong own-brand range at a mid-ranked retailer can beat a weak one higher up the list — the brand database is the finer-grained view.