Biscuit eaters managing diabetes
If you want an occasional shortbread or digestive, compare the carbohydrate in the portion you would eat rather than treating either biscuit type as approved for diabetes.
Who this comparison helps
Carbohydrate counters
Use the exact pack’s serving information to plan a portion. For individual questions about adjusting insulin to carbohydrate intake, Diabetes UK advises speaking with your healthcare team.
Shoppers comparing everyday biscuits
If you are choosing between plain shortbread and digestives, weigh portion size and total carbohydrate alongside sugars, saturated fat and ingredients.
What to check when choosing
Start with the amount you would actually eat: a smaller biscuit and a different recipe can both change a per-biscuit comparison.
| Priority | What to check | Your needs |
|---|---|---|
| Carbohydrate per portion | Read total carbohydrate per biscuit and the stated biscuit weight. If comparing different sizes, use each pack’s per-100g figure for a like-sized portion. | I want to plan the amount I will eat, rather than assume a digestive or shortbread has less carbohydrate. Waitrose & Partners lists 10.0 g per Essential Digestive biscuit and 12.2 g per shortbread finger; those servings are different sizes. |
| Sugars and claims | Read “of which sugars” alongside total carbohydrate for the same serving. Check serving size and ingredients on biscuits described as reduced-sugar or containing sweeteners. | A lower-sugar description alone does not answer my carbohydrate question. Diabetes UK advises individual guidance for people adjusting insulin when polyols are involved. |
| Saturated fat | Compare saturated fat for the number of biscuits you intend to eat, not just the per-100g figure. | I want to consider more than carbohydrate when choosing a portion. Tesco lists 2.8 g saturated fat per 18 g shortbread finger; Sainsbury’s lists 3.7 g per Highland shortbread finger. |
| Ingredients and allergens | Read the purchased pack’s ingredient and allergen information, particularly if you have an allergy. Check it again when buying a different recipe or pack. | If an ingredient matters to me, the actual pack needs to work for my requirements as well as my planned portion. |
Common comparison mistakes
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Choosing by sugars alone
Waitrose & Partners lists 3.5 g sugars and 10.0 g total carbohydrate per Essential Digestive biscuit. The figures answer different questions.
For carbohydrate planning, read total carbohydrate for the portion you intend to eat, alongside sugars.
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Declaring one biscuit type the healthier choice from one pack
Per-biscuit figures describe particular recipes and serving sizes. They do not establish a conclusion for every shortbread or digestive.
Compare the exact packs on the same portion basis, including carbohydrate and saturated fat.
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Assuming similarly named assortments have identical nutrition
Walker's Shortbread lists 59.5 g carbohydrate per 100 g for its 160 g shapes assortment, while a similarly named Joybuy 160 g assortment lists 62 g per 100 g.
Use the nutrition information for the precise product you purchase rather than transferring figures between listings.
Brand and retailer references
These figures describe the named products, not every biscuit made or sold by each brand or retailer.
Walker's
Scottish shortbread in fingers and mixed shapes, including a 160 g shapes assortment.
- Walker's Shortbread lists 59.5 g carbohydrate and 17.9 g saturated fat per 100 g for that assortment.
- Mixed shapes make a single-piece comparison less straightforward; check the weight of the portion you choose.
Dean's
Traditional shortbread fingers, including a 125 g pack.
- Dean's of Huntly lists 64.2 g carbohydrate and 17.1 g sugars per 100 g for its 125 g traditional fingers.
- Use the purchased pack’s serving information when planning how many fingers to eat.
M&S
Mini shortbread fingers offer another portion format to compare with standard fingers.
- Marks & Spencer lists 59.1 g carbohydrate and 17.8 g saturated fat per 100 g for its mini shortbread fingers.
- Check how many mini fingers make up the portion you intend to eat; M&S also advises reading the product label.
Waitrose
Its named plain digestive and shortbread finger provide examples of the two biscuit types.
- Waitrose & Partners lists 10.0 g carbohydrate per Essential Digestive biscuit and 12.2 g per shortbread finger.
- Those biscuits are different-sized servings; the figures do not describe all digestives or all shortbread.
Tesco
Own-label all-butter shortbread fingers with nutrition information for an 18 g finger.
- Tesco lists 10.9 g carbohydrate and 2.8 g saturated fat per finger for this product.
- Check the purchased pack when comparing ingredients and nutrition.
Sainsbury's
Own-label Highland all-butter shortbread fingers with per-biscuit nutrition information.
- Sainsbury's lists 12.1 g carbohydrate and 3.7 g saturated fat per finger for this product.
- Those values describe the named fingers, not Sainsbury's wider biscuit range.
Shortbread options on Joybuy
This shortbread option is relevant if you prefer shortbread and want to check a 25 g product against the portion you plan to eat. The choice between shortbread and digestives still depends on the exact packs you compare.
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Island Bakery Organic Shortbread 25g
If you are considering a shortbread portion, use this product’s 25 g size to check the purchased pack’s total carbohydrate and saturated fat figures for the amount you intend to eat.
Questions about choosing biscuits
Does a biscuit labelled “diabetic” offer a special benefit?
Do not use that wording as a suitability test. Diabetes UK says it does not recommend snacks labelled “diabetic”; compare the portion and nutrition label instead, alongside individual advice where needed.
How should I store an opened pack?
Follow the instructions on the purchased pack. Waitrose & Partners says its Essential Digestive Biscuits should be kept in an airtight container once opened.
Where can I check allergens in packaged biscuits?
Check the purchased pack’s ingredient and allergen information before choosing a biscuit if you have an allergy. UK government food-labelling guidance identifies ingredients, including allergens, as information to look for on food labels.