Free Tool — Beta

Hidden Sugar Checker

Paste any ingredients list to reveal hidden sugars most people miss. We check against 66 known sugar aliases.

SpikeSaver

See this automatically while you shop Tesco

SpikeSaver highlights hidden sugars instantly — no label reading needed.

Plus UPF scores, glucose impact, keto ratings, and better alternatives — all while you browse.

Install Chrome Extension — Free in Beta

Chrome extension · Free during beta · Works on Tesco.com

FAQ

Frequently Asked Questions

Hidden sugars are sweeteners listed under names most people don't recognise — like maltodextrin, dextrose, or glucose-fructose syrup. They're still sugar, but harder to spot on a label. Food manufacturers sometimes use several different sugar aliases in one product so that no single one appears first in the ingredients list.

Ingredients are listed in descending order by weight. By splitting sugar across several aliases (e.g. sugar, glucose syrup, dextrose), each one appears lower down the list. This can make a product look less sugar-heavy than it really is.

Check the full ingredients list — not just the nutrition label. Look for names ending in '-ose' (glucose, fructose, maltose, dextrose) and anything labelled 'syrup', 'nectar', or 'concentrate'. Or use SpikeSaver, which detects these automatically while you shop on Tesco.com.

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