Our brief

A guide to real food.

leastprocessed.com ranks every grocery product sold at the eight major UK supermarkets by how processed it is. We use the academic NOVA classification (groups 1 to 4) and a derived 0–100 score that accounts for additives, ingredient count, and the presence of industrial emulsifiers, refined oils, and artificial flavours.

The catalogue covers 95,263 products across 5542 categories at 16 supermarkets (Tesco, Sainsbury's, Asda, Waitrose, M&S, Morrisons, Lidl, Aldi). About 18,793 have a verified NOVA processing score; the rest get an estimated score based on additive count and ingredient quality.

We don't show prices. We don't carry display ads. The score never reads who's paying — by construction it can't, because the formula is generated from open data published by Open Food Facts under the ODbL 1.0 licence, and the sponsorship data isn't in the same code path. Some product cards carry affiliate links to retailers (Bulk, iHerb, Amazon and others — see our editorial policy for the mechanics) and some category pages carry retailer placements disclosed inline as "SPONSORED — DOESN'T INFLUENCE SCORE." Neither buys a higher rank.

What it's not

Not medical advice. Not a diet recommendation. Not a verdict on your shopping. Some highly processed foods are nutritious; some whole foods aren't. We're scoring one thing: how much industrial processing went into the product before it reached your trolley.

Tell us where we're wrong

The crowdsourced data has gaps and stale entries. The score formula is opinionated. The category bucketing is imperfect. If something looks off — wrong ingredients, wrong score, wrong retailer, missing product — please email alexdenne@gmail.com. Every page footer carries the same link, pre-filled with the page URL so we can find the issue fast.