What to check before buying
Start with the sugar claim, then check whether the ingredients, serving information and pack size work for the way you plan to offer the biscuits.
| Priority | What to check | Your needs |
| Sugar claim |
Read the exact claim and sugars per 100g. Asda Groceries lists Gullón Zero Original Digestives at less than 0.5g sugars per 100g; Tesco Groceries describes Diablo Digestive Cookies as no added sugar, not as an established sugar-free choice. |
I want guests asking for sugar-free biscuits to be able to identify the right pack, rather than mistaking reduced-sugar or Free From biscuits for it. |
| Portions and sweeteners |
Check energy and carbohydrate per 100g alongside the ingredients and warnings. Asda Groceries lists 430kcal and 68g carbohydrate per 100g for Gullón Zero Original Digestives and warns that excessive consumption may produce a laxative effect. |
Guests might take several biscuits, so I want the sweetener warning available when serving them. |
| Allergens |
Check both contains and may-contain statements on the current pack. Asda Groceries identifies wheat and possible milk and soya for Gullón Zero Original Digestives; Tesco Groceries lists wheat, milk and soya for Diablo Digestive Cookies. |
Anyone checking allergens needs to see the information for the particular biscuits on offer, regardless of their sugar claim. |
| Quantity and storage |
Compare pack weights and any stated biscuit count: Asda Groceries describes its 400g Gullón Zero pack as containing approximately 30 biscuits, while Tesco Groceries lists Diablo in a 150g pack. Check storage directions on the packs you buy. |
I need enough biscuits for the expected refreshments and a practical way to keep the packs stored as directed. |
Brand and retailer references
These named ranges illustrate different packet claims; a brand name alone does not establish whether a particular biscuit is sugar-free.
Gullón Zero
Asda Groceries lists Zero Digestive Original Biscuits in a 400g pack with less than 0.5g sugars per 100g.
- The listing describes approximately 30 biscuits per pack.
- This product contains wheat, may contain milk and soya, and carries an excessive-consumption warning.
Diablo
Tesco Groceries lists No Added Sugar Digestive Cookies in a 150g pack sweetened with maltitols.
- The no-added-sugar wording offers a distinct choice when that is the requirement.
- Do not treat that wording as a sugar-free claim. Tesco Groceries lists wheat, milk and soya, plus additional possible allergens.
McVitie’s
Digestives The Light One is a reduced-sugar comparison, not the sugar-free option discussed here.
- Tesco Groceries gives a per-biscuit sugars figure of 1.3g for this product.
- Its stated “30% Less sugar” claim compares it with the average digestive biscuit; it does not mean sugar-free.
Tesco
Tesco Free From Digestives address stated gluten, wheat and milk restrictions rather than a sugar-free requirement.
- Tesco Groceries describes this particular product as gluten-, wheat- and milk-free.
- Its listed ingredients include muscovado sugar, and its nutrition information gives 24.8g sugars per 100g.
Asda
Asda’s own-brand 400g Digestive Biscuits are a conventional option for guests who have not requested sugar-free biscuits.
- Asda Groceries provides a sugars figure of 16g per 100g for this pack.
- These biscuits contain wheat and should not be confused with the separate Gullón Zero product that Asda lists.
A Joybuy sugar-free digestive option
This 400g sugar-free digestive option is relevant when the sugar-free distinction matters for car boot sale refreshments; check the current packet before offering biscuits to guests.
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Gullón Zero Sugar Free Original Digestives 400g
A 400g digestive biscuit pack for refreshments where a sugar-free choice is needed.
The product information gives less than 0.5g sugars per 100g. It identifies wheat and possible milk and soya, and warns that excessive consumption of its sweeteners may produce a laxative effect; check the current pack when serving.
View on Joybuy
Questions about buying and serving biscuits
Does no added sugar mean a digestive is sugar-free?
No. Tesco Groceries describes Diablo Digestive Cookies as no added sugar, which is a different claim. If sugar-free is required, check the exact wording and sugars-per-100g figure on the current pack.
How should I store and display packaged digestives?
Follow the directions on the particular pack and keep its ingredient information accessible. For example, Asda Groceries directs buyers to store its own-brand 400g Digestive Biscuits in a cool, dry place away from direct heat and sunlight.
Must I register to sell refreshments at a car boot sale?
If you are starting a food business, the Food Standards Agency says you must register with your local authority and advises doing so at least 28 days before trading or starting food operations. Whether a particular car boot sale activity is a food business depends on the circumstances; the event setting alone does not settle it.
What allergen information matters if I repackage biscuits?
If you operate a food business, check the rules for the way you supply the biscuits before repackaging them. UK Government allergen guidance for food businesses, updated on 17 July 2026, requires allergen information from retail and catering food-business operators, with different labelling rules according to how the food is provided. Keep the current packet details available so you can identify the ingredients in the biscuits you offer.