Among the reviewed biscuits, McVitie’s Original Digestives have less sugar and more fibre per 100g than the reviewed standard custard creams, so a plain digestive is the closer match if you specifically want a biscuit before exercise. That does not make it a training-focused snack: University College London Hospitals NHS Foundation Trust advises carbohydrate and protein with minimal fat for a snack 60–90 minutes before training, while the reviewed digestive contains 21.3g fat per 100g. If exercise starts sooner, do not assume either biscuit meets your needs.
If you want a cupboard snack, compare the portion and nutrition panel rather than treating a biscuit’s name as a guide to its training suitability. University College London Hospitals NHS Foundation Trust describes carbohydrate, protein and minimal fat as characteristics to consider for this timing.
With only 15–30 minutes before a session, the question is whether a biscuit is the right snack format at all. Do not assume a digestive or cream-filled biscuit is interchangeable with a faster-acting carbohydrate option.
Buying biscuits for a state-funded school calls for a different check from choosing a personal snack. Department for Education school-food guidance addresses food provided in state-funded schools in England; HFSS retail-promotion guidance addresses promotion and placement by businesses selling to England. Check the requirements for the particular nation, school setting and product.
Start with the time until exercise, then compare the exact biscuit and portion you plan to eat. A school purchase also needs a separate check of the applicable food rules.
| Priority | What to check | Your needs |
|---|---|---|
| Exercise timing | Check how long you have before exercise and whether you have recently eaten. University College London Hospitals NHS Foundation Trust describes carbohydrate, protein and minimal fat for a snack 60–90 minutes before training. | I have time for a snack before training, but I do not want to assume that any convenient biscuit meets those characteristics. If I am starting sooner, I need to reconsider the snack format. |
| Nutrition and portion | Compare sugars, fibre, fat and saturates per 100g on the exact pack, then check the portion. Tesco Groceries lists 15.1g sugars and 3.7g fibre per 100g for McVitie’s Original Digestives, against 28.3g and 1.1g for Tesco Custard Creams. | A plain digestive appeals more than a cream-filled biscuit if those sugar and fibre figures matter to my choice. I still need to check fat and how many biscuits I intend to eat. |
| Ingredients and allergens | Read the current pack for ingredients, emphasised allergens and precautionary statements. The reviewed Tesco custard creams contain wheat and milk ingredients and may contain sesame; the reviewed McVitie’s digestive contains wheat and may contain milk. | I need the particular pack to fit my ingredient requirements; a biscuit category or a previous purchase is not enough to check that. |
| School setting | Identify the UK nation, school type and how the food will be provided. Department for Education guidance covers food provided in state-funded schools in England; Department of Health and Social Care HFSS guidance concerns retail promotion and placement by businesses selling to England. | If I am purchasing for a school, I need to check the applicable school-food requirements and the exact product rather than use a retail-promotion rule as a school-meal decision. |
Tesco Groceries lists 21.3g fat and 10.1g saturates per 100g for the reviewed McVitie’s Original Digestive. Its lower sugar and higher fibre than the reviewed standard custard creams do not change those figures.
Use the label comparison to choose between biscuits, not as proof that the digestive meets University College London Hospitals NHS Foundation Trust’s minimal-fat characteristic for a snack 60–90 minutes before training.
The nutrition panels for the reviewed custard creams do not establish that they are a suitable faster-acting carbohydrate option for exercise starting in 15–30 minutes.
Check the timing and the snack format rather than treating a cream-filled biscuit as interchangeable with an option chosen for a short interval before exercise.
Marks & Spencer lists 40.2g sugars and 23.4g fat per 100g for its Extra Cream Custard Creams; Tesco Groceries lists 28.3g sugars and 20.5g fat per 100g for its standard custard creams.
Compare the per-100g panels of the exact variants, then check the portion, rather than assuming all custard creams have the same nutrition.
Department for Education guidance addresses food provided in state-funded schools in England, while Department of Health and Social Care guidance addresses certain HFSS retail promotions and placements by businesses selling to England. They have different purposes and scopes.
For a school purchase, check the rules for its nation and setting and assess the exact product under the applicable requirements.
These examples refer to particular reviewed biscuits, not to every product made by each brand or to Joybuy availability.
The reviewed Original Digestive is a plain biscuit to compare with cream-filled custard creams.
The reviewed custard creams provide a standard cream-filled biscuit for comparison with a plain digestive.
The reviewed 400g standard custard creams are an own-label, cream-filled option.
The reviewed Extra Cream Custard Creams are a distinct variant rather than a like-for-like standard custard cream.
These Joybuy options include plain, sugar-free and chocolate-coated digestives alongside a gluten-free custard cream. Compare each variant on its own terms; a coating or a free-from formulation changes what you are comparing with the standard biscuits discussed above.
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A digestive option if you are comparing biscuit formats before exercise. Check the current nutrition and ingredient panels, including the type of sweetener, rather than assuming that “sugar free” establishes how it fits your timing or portion.
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A plain digestive option for comparison with custard creams; this is a 2x315g pack, not the 360g pack in the Tesco Groceries comparison. Check its current nutrition and ingredient information for the portion you intend to eat, particularly fat and allergens.
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A gluten-free custard-cream variant for shoppers comparing ingredient requirements as well as biscuit type. Read the current pack for the full ingredients, allergen information and nutrition; do not apply figures from a standard custard cream to this variant.
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A dark-chocolate digestive for shoppers who want a coated biscuit. Compare its own nutrition panel and portion with a plain digestive rather than assuming the two variants have the same sugar or fat figures.
Do not assume a custard cream meets the needs of every pre-exercise snack. University College London Hospitals NHS Foundation Trust describes carbohydrate, protein and minimal fat for snacks 60–90 minutes before training; Tesco Groceries lists 20.5g fat per 100g for its reviewed custard creams and 21.6g for the reviewed Crawford’s product. If exercise starts in 15–30 minutes, reconsider whether a biscuit is the right format.
In the reviewed Tesco Groceries listings, McVitie’s Original Digestives contain less sugar and more fibre per 100g than the standard Tesco and Crawford’s custard creams. The digestive still contains 21.3g fat per 100g, so compare the full nutrition panel, portion and time until exercise rather than choosing on sugar and fibre alone.
No: the Department of Health and Social Care guidance concerns promotion and placement of certain foods by retail and online businesses selling to England. Department for Education guidance separately explains requirements for food provided in state-funded schools in England. For a school purchase, check the applicable school-food requirements and the exact product; a retail-promotion rule does not establish a product-specific school-food decision.
Read the current packet for the exact variant. The reviewed Tesco custard creams contain wheat and milk ingredients and may contain sesame; the reviewed McVitie’s Original Digestive contains wheat and may contain milk. A gluten-free product name does not replace a check of its full ingredients and allergen statements.