Gullón Zero Digestive Biscuits Review: a simple, sugar-free teatime companion
A budget-friendly, no-added-sugar digestive that's a bit flat on its own but comes into its own once dunked in tea.
Bland on its own, brilliant in a brew, this is a biscuit that needs its tea.
What is the Scout Score and how does it work? →Sugar
1.5 /2
Sugar content scores well here, with genuinely minimal sugar per 100g, though it's worth remembering that maltitol still has an impact on blood glucose despite the "sugar free" label.
Taste & Texture
1 /2
Melts well, tastes precisely like it promises, and leaves a pleasant aftertaste when dunked well.
Ingredients
1.5 /2
Ingredients quality is solid, with a simple, recognisable list, though the reliance on maltitol and isomalt is the main thing holding it back from a higher score.
Value
2 /2
Value for Money scores highly, as a price around £1.24 is a genuinely fair price for a pack of sugar-free biscuits that do the job at teatime.
Usability
0.5 /2
Everyday usability is the weakest area, largely because the biscuits break easily and don't travel well beyond the kitchen table.
Where to buy
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Table of Contents
Introduction
What is it
Gullón Zero Digestive Original Biscuits bring the classic teatime digestive into no-added-sugar territory, sweetened with maltitol and isomalt instead of sugar. They score 6.5/10 on the Scout Score, held back mainly by everyday usability and a taste that needs a cup of tea to really shine.
If you're after a straightforward, budget-friendly biscuit to have alongside your brew, this ticks the box. Just go in knowing the sweetener comes with its own small print.
Nutrition
Nutritional breakdown
Per 100g, these biscuits contain less than 0.5g of sugar, comfortably under the NHS low-sugar threshold of 5g per 100g and a genuine result for a biscuit that's meant to taste like a digestive rather than a diet product.
As with most maltitol-sweetened biscuits, the carbohydrate figure on the label will look a fair bit higher than the sugar figure suggests. That's the polyols doing their work: counted as carbohydrates, but metabolised differently to sugar.
Differently, though isn't the same as harmlessly, which is worth bearing in mind before you work through half the packet in one sitting.
Sensory
Taste and texture
Eaten on their own, these biscuits are a bit flat. There's whole wheat flour doing the heavy lifting, but not much else coming through: no real toastiness, no rounded sweetness, and barely any smell to speak of when you open the pack. It's a fairly one-note eating experience.
Dunk them, though, and they come into their own. The texture softens in a way that suits a good soak, and the blandness that's noticeable dry becomes far less of an issue once the tea's doing some of the flavour work. The catch is that they're fragile: these break easily, so a confident dunk rather than a tentative one is the way to go, unless you enjoy fishing crumbs out of your mug afterwards.
Compared to a regular digestive, the gap is honest rather than hidden. You're not getting the same rounded, malty sweetness, and the biscuit doesn't pretend otherwise. This is a fair trade of sugar for a milder, plainer bite, not a seamless swap.
Formula
Ingredients and label analysis
The ingredient list is short and mostly recognisable: whole wheat flour makes up the bulk at 65%, with high oleic sunflower oil, oligofructose, raising agents and salt rounding things out. Nothing artificial-sounding, nothing you need a chemistry degree to parse.
Ingredients:
The one line worth pausing on is the sweetener blend. Maltitol and isomalt do the job of replacing sugar, but maltitol in particular still raises blood glucose to some degree and is a well-known trigger for digestive upset, bloating and a laxative effect if you overdo it. Worth pacing yourself, especially the first time you try them.
Price
Value for money
Picking up a 400g pack for around £1.24, these are genuinely cheap for a no-added-sugar biscuit, and that price point is one of the strongest things about them.
There's no premium health-food markup here; this sits comfortably alongside what you'd pay for a regular supermarket digestive.
For the money, you're getting a competent, if unremarkable, biscuit that does its main job (accompanying a cup of tea) perfectly well. If value is your main concern, this is hard to fault.
Verdict
Everyday usability
On a normal Tuesday morning, these are an easy, low-effort choice if biscuits and tea are already part of your routine. There's no faff involved: open the pack, dunk, done. They fit naturally into that sit-down, few-minutes-with-a-brew moment rather than anything more elaborate.
Where they come up short is portability. The fragile texture means they don't hold together well outside a biscuit tin, so packing them for work, a bag, or anywhere they might get jostled isn't really an option.
In terms of UK availability, they're a widely stocked, easy-to-find option rather than a specialist buy, which helps their everyday practicality even if their durability lets them down.
Bottom line
Yay or nay?
Gullón Zero Digestive Original Biscuits are a solid, affordable option if you want a lower-sugar biscuit for your tea break and aren't expecting fireworks. The price is genuinely good, the ingredients list is clean, and dunked in tea they do the job well enough.
Where they fall down is versatility and standalone taste. If you're after a biscuit that travels well or that's satisfying eaten on its own, this isn't it, and the maltitol content means it's not a completely free pass if you're sensitive to sugar alcohols. Buy them as a cheap, reliable teatime companion. Skip them if you want something sturdier or more flavourful in its own right.
Frequently asked questions
How does the Scout Score work?
The Scout Score is an aggregate metric based on nutritional profile and taste. You can find out more here.
Where can I buy Gullón Zero Digestive Original Biscuits in the UK?
They're fairly widely available, with Morrisons, Asda, and Amazon among the main stockists. As a mainstream supermarket product rather than a specialist health-food item, they're generally easier to get hold of than some of the more niche no-added-sugar biscuits on the market.
Are Gullón Zero Digestive Original Biscuits keto-friendly?
Not really. Whole wheat flour makes up 65% of the biscuit, which is a straightforward high-carb ingredient regardless of the sugar content. Maltitol adds to this, as it's absorbed more than most sugar alcohols and is typically counted towards net carbs by keto trackers. Between the two, these would use up a fair chunk of a daily keto carb allowance.
Do these biscuits taste like a regular digestive?
Not quite. Eaten on their own, they're noticeably milder and plainer than a standard digestive, with less of that toasty, malty sweetness. They come into their own once dunked in tea, where the softer texture and the tea itself help mask the blandness.
Are Gullón Zero Digestive Original Biscuits healthy?
Fairly, but with a caveat. The sugar content is very low at less than 0.5g per 100g, well under the NHS threshold for low sugar, and the ingredient list is short and mostly recognisable, with whole wheat flour as the main component. The trade-off is the maltitol, which still raises blood glucose to some degree and can cause bloating or a laxative effect if you have more than a few in one go. So "zero sugar" doesn't mean "zero impact." They're a reasonable lower-sugar swap rather than a health food in their own right.
