A large multipack can suit a household that shares familiar custard creams as occasional snacks, but it should not stand in for a practised marathon-fuelling plan. Tesco Groceries describes its 750g pack as five 150g packs, although it was out of stock when checked. For long runs and race day, the University of Birmingham and St Mary’s University emphasise planning carbohydrate intake around the effort and sticking with familiar foods.
Custard creams may be part of an established snack routine, but long-run and race-day carbohydrate intake calls for a separate, practised plan. St Mary’s University stresses familiarity in marathon preparation.
Net weight and inner packs matter when several people will use the biscuits. Tesco Groceries lists a 750g format containing five 150g packs, as well as a separate 400g pack.
Check the label on the exact pack you intend to use. The product listings describe different wheat, milk, soya and possible sesame declarations, so one custard cream’s ingredients should not be assumed to match another’s.
Choose the pack for its intended household use first, then check whether the biscuits fit your existing training-food routine.
| Priority | What to check | Your needs |
|---|---|---|
| Pack format | Compare net weight and inner packs. Tesco Groceries lists five 150g packs in its 750g product, versus a separate 400g pack. Check availability before relying on either listing. | I want enough biscuits to share, but need a pack size and storage arrangement that suits my household. |
| Carbohydrate portions | Compare like with like: Tesco Groceries lists 8.8g carbohydrate per biscuit for its 750g product and 8.4g per biscuit for its 400g product. The University of Birmingham says in-exercise carbohydrate guidance varies with duration and intensity. | For a snack, I want to know what a biscuit provides. For a long run, I need a fuelling plan rather than assuming a family pack will cover it. |
| Food familiarity | Consider when you plan to eat the biscuits and whether you have already used that food during training. St Mary’s University stresses consistency and familiarity in marathon preparation. | Close to race day, I would rather stick with foods and amounts I have already practised. |
| Ingredients | Read the current ingredients and allergen statement on the exact pack. Product listings identify wheat and milk in standard products; soya and possible sesame declarations vary. | If an ingredient matters to me, I need to check this particular pack, not rely on another brand’s label. |
Tesco Groceries lists 8.8g carbohydrate per biscuit in its 750g pack. The University of Birmingham describes a much broader in-exercise carbohydrate range that depends on duration and intensity; a pack label alone cannot establish what to use during a run.
Keep occasional biscuits separate from a long-run fuelling plan, and practise intended race-day foods during training.
Five inner packs may be useful for sharing, but the Tesco 750g listing was out of stock when checked. A large stated weight is not by itself a practical purchase choice.
Compare inner-pack count, storage needs and live availability before deciding between the 750g and smaller formats.
The listed products differ in their declared allergens and precautionary statements, including soya and possible sesame information.
Read the current label on the exact pack, particularly when an ingredient needs to be avoided.
These examples show different pack formats and recipes; brand inclusion does not indicate that a product is available to buy.
Tesco Groceries lists both a 750g custard-cream multipack containing five 150g packs and a separate 400g pack.
Ocado describes M&S Extra Cream Custard Creams as a 165g pack of 12 biscuits with a 33% vanilla-flavour filling.
Joybuy lists McVitie’s Tasties Custard Creams Biscuits as a 300g product, with carbohydrate and sugars stated per 100g.
This smaller gluten-free custard cream pack is an option to assess for an occasional, familiar snack, rather than a shareable family-pack format or a complete running-fuel plan.
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This 125g pack is a smaller snack option, not a split family multipack. Check the current ingredients and nutrition label if you need it to fit an established training-food routine.
Do not treat a family biscuit pack as a complete race-day fuelling plan. Tesco Groceries lists 8.8g carbohydrate per biscuit for its 750g pack, while the University of Birmingham says in-exercise carbohydrate guidance depends on duration and intensity. Practise the foods and amounts you intend to use during training.
They contain carbohydrate, but a biscuit snack is not a substitute for a planned approach. St Mary’s University describes marathon carbohydrate loading as a structured increase over the final 48–72 hours before race day and stresses familiar foods.
Tesco Groceries describes its 750g custard creams as five 150g packs. Its 400g product and the 165g M&S Extra Cream product are smaller formats. The 750g listing was out of stock when checked, so confirm availability before planning around it.
Yes. The listed products have different ingredient and precautionary allergen statements, including differences concerning soya and possible sesame. Use the current label on the exact pack you intend to eat.