Runners choosing a training snack
If you want a light, crisp snack, compare the stated portion rather than assuming all rice cakes contain the same calories. Kallo UK and Sainsbury’s list different per-cake values for their plain products.
Who is this for?
Runners planning fuel for a long session
Carbohydrate per cake matters more than the category name when you are working out what to carry and eat. World Athletics’ hourly guidance provides a reference for assessing whether the quantity of cakes would be practical.
Shoppers checking dietary labels
Gluten-free and vegan descriptions apply to individual products, not every rice cake. Check the exact pack’s ingredients and allergen statements, particularly if you have an allergy.
What should you check?
Decide whether the cakes are for a snack or part of a long-run fuel plan, then compare portions on the same basis.
| Priority | What to check | Your needs |
|---|---|---|
| Carbohydrate for long runs | Read carbohydrate per cake and consider how many cakes you could carry and eat. Tesco lists 5.6 g for Kallo Lightly Salted; Sainsbury’s lists 6.1 g for its Rice Cakes. World Athletics lists 30–60 g per hour for 1–2.5 hours of exercise and up to 90 g per hour beyond 2.5 hours. | If I’m taking rice cakes on a long run, I need to know how they fit into a fuelling plan I have practised in training. |
| Calories per portion | Compare calories per cake, not just per 100 g. Kallo UK lists 27 kcal for its Lightly Salted cake, Sainsbury’s lists 29 kcal for its Rice Cake, and Snack a Jacks lists 38 kcal for a Jumbo Black Pepper & Sea Salt cake. | For a snack, I want to compare the amount I would actually eat rather than the figures for a different serving size. |
| Flavour and ingredients | Check the exact variety and its ingredients. Kallo UK lists wholegrain brown rice and sea salt for Lightly Salted; Snack a Jacks’ stated calories vary across its Jumbo flavours. | A plain base suits me when I do not want a flavoured cake; otherwise, I’ll compare the particular flavour I’m buying. |
| Dietary suitability | Read the current pack’s ingredients, dietary labels and precautionary allergen statements. Sainsbury’s says its Rice Cakes are prepared to a vegan recipe but are not suitable for customers with a milk allergy because of manufacturing methods. | If I need to avoid an allergen or require a particular dietary label, the exact pack matters more to me than a category filter. |
Common buying mistakes
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Equating a light snack with enough long-run fuel
Tesco and Sainsbury’s list just 5.6 g and 6.1 g carbohydrate per cake for their respective plain products. Several cakes would be needed to reach even the lower end of World Athletics’ 30–60 g-per-hour guidance for exercise lasting 1–2.5 hours.
Check carbohydrate per cake and practise how the food fits into your wider fuelling and fluid plan during training.
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Comparing only the per-100 g figures
A per-100 g value does not tell you the amount in one cake unless you also know its weight. That makes it a poor substitute for a per-cake comparison when choosing a portion.
Use per-cake calories and carbohydrate where stated; if they are not, check the serving weight before comparing products.
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Assuming plain means suitable for every allergy
A short ingredient list does not rule out allergen cross-contact. Sainsbury’s states that its Rice Cakes are not suitable for customers with a milk allergy because of manufacturing methods.
Read the ingredients and precautionary statements on the exact pack before eating it.
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Expecting every flavour to have the same portion values
Snack a Jacks lists 38–62 kcal per cake across the Jumbo flavours cited on its product page. Those values should not be treated as interchangeable with the 27–29 kcal listed for the plain Kallo and Sainsbury’s examples.
Compare the flavour and serving size you intend to buy, rather than relying on the brand name alone.
Brand and retailer references
Kallo
Kallo UK lists 27 kcal per cake for Lightly Salted Wholegrain Low Fat Rice Cakes; Tesco lists 5.6 g carbohydrate per cake for that product.
- Kallo UK lists wholegrain brown rice and sea salt as ingredients and labels the product gluten free and vegan friendly.
- At 5.6 g carbohydrate per cake, the Tesco-listed product would take several cakes to contribute substantially to a long-run hourly carbohydrate plan.
Sainsbury’s
Sainsbury’s lists 29 kcal and 6.1 g carbohydrate per cake for its 135 g Rice Cakes.
- The per-cake values allow a direct portion comparison with other products that state the same measures.
- Sainsbury’s says this product is not suitable for customers with a milk allergy because of manufacturing methods.
Snack a Jacks
Snack a Jacks lists Jumbo cakes in several savoury and sweet flavours, with stated calories varying by flavour.
- Its listed Jumbo flavours include Black Pepper & Sea Salt and Sour Cream & Chive at 38 kcal per cake, and Salt & Vinegar at 41 kcal per cake.
- Caramel is listed at 51 kcal and Chocolate Chip at 62 kcal per Jumbo cake; check the particular flavour rather than using one value for the range.
M&S
M&S lists wholegrain brown rice and salt for its Lightly Salted Rice Cakes, with nutrition stated per 100 g.
- The Lightly Salted product lists 386 kcal and 79.6 g carbohydrate per 100 g.
- Its Barbecue High Protein Rice Cakes are a different product, listed at 451 kcal per 100 g by M&S; the figures cannot be used as per-cake portions without a cake weight.
Tesco
Tesco’s listing for Kallo Lightly Salted Wholegrain Low Fat Rice Cakes gives per-cake nutrition for comparing a plain snack with a fuel plan.
- The listing states 27 kcal and 5.6 g carbohydrate per cake.
- These figures describe the listed Kallo product, not every rice cake sold by Tesco.
Rice cakes on Joybuy
These options include a lightly salted cake and several flavoured cakes for comparing snack formats. Check each pack’s per-cake nutrition if you plan to use it during a long run; the Kallo Organic product listed here is a different named variant from the Kallo Lightly Salted product discussed above.
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Kallo Organic Lightly Salted Rice Cakes 130g
A lightly salted option for someone choosing a plain-flavoured snack. Check this Organic variant’s per-cake nutrition on the pack before using it to plan long-run carbohydrate.
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Kallo Jumbo Apple & Cinnamon Rice Cakes 127g
An apple and cinnamon variety if you prefer a flavoured snack. Compare the pack’s per-cake calories and carbohydrate with any plain cake you are considering.
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Kallo Blueberry and Vanilla Rice and Corn Cakes 131g
A flavoured rice-and-corn option for a snack. Read the exact pack’s ingredients, dietary labels and per-cake nutrition if those affect your choice.
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Snack a Jacks Jumbos Sour Cream & Chive Rice Cakes 117g
A savoury flavoured option; Snack a Jacks lists 38 kcal per Sour Cream & Chive Jumbo cake. Check carbohydrate per cake and the pack’s allergen information for your intended use.
Frequently asked questions
Can rice cakes fuel a marathon on their own?
Plain rice cakes can contribute carbohydrate, but they are not a practical complete plan on their own. Tesco lists 5.6 g per cake for Kallo Lightly Salted and Sainsbury’s lists 6.1 g for its Rice Cakes, while World Athletics lists 30–60 g carbohydrate per hour for exercise lasting 1–2.5 hours and up to 90 g per hour beyond 2.5 hours. Practise a wider fuelling plan during training.
How many plain cakes would provide about 30 g carbohydrate?
On the stated per-cake figures, about six Kallo Lightly Salted cakes or five Sainsbury’s Rice Cakes would provide at least 30 g carbohydrate. Tesco lists 5.6 g for the Kallo product and Sainsbury’s lists 6.1 g for its product. That calculation does not establish whether eating or carrying that quantity works for you during a run.
Are rice cakes gluten free and vegan?
Check the exact product rather than assuming all rice cakes have the same labels. Kallo UK labels its Lightly Salted product gluten free and vegan friendly; Sainsbury’s labels its Rice Cakes gluten free and says they are prepared to a vegan recipe, but also says they are not suitable for customers with a milk allergy because of manufacturing methods. Read the pack’s current allergen information.
Why check the pack if you have bought the rice cakes before?
Ingredients and allergen information can change. Sainsbury’s advises shoppers to read the label of its Rice Cakes before use, so check the current pack whenever an ingredient or dietary requirement affects your choice.