Plain or lightly salted rice cakes are a useful starting point for comparing calories: Tesco, Sainsbury's and ASDA list 27–30 kcal per cake for the examples covered here. None is automatically suitable for a food allergy. Check the current pack's ingredients, allergen declarations and precautionary statements against your specific allergy before comparing calories or choosing a flavoured alternative.
Start with the ingredient list and any allergen warnings on the current pack. A per-cake calorie figure becomes useful only once you have checked the product against the allergen you need to avoid.
Check the exact variant, not just whether it is plain or flavoured. Sainsbury's lists a milk-allergy warning for its plain rice cakes, ASDA says its slightly salted cakes may contain soya, and some coated or flavoured products declare further allergens.
A gluten-free claim addresses gluten, not every other allergen. The Food Standards Agency states that food labelled gluten-free must contain no more than 20 mg/kg gluten as sold; check the same pack separately for any other allergen relevant to you.
Screen the current pack for your allergen first, then compare calories using the amount you would actually eat.
| Priority | What to check | Your needs |
|---|---|---|
| Allergen information | Read the current pack's ingredients, highlighted allergens and any precautionary statement. Check the exact flavour or coating, since allergen information differs between variants. | I need to rule out the allergen relevant to me before considering the calorie figure. A plain name alone does not settle that question. |
| Calories per portion | Compare kcal per cake with kcal per cake, or use the stated serving or portion-pack size. Account for the number of cakes and any toppings you plan to eat. | For one plain cake, Tesco lists 27 kcal, Sainsbury's 29 kcal and ASDA 30 kcal on the product pages covered here. I would check the pack again if my serving contains more than one cake. |
| Dietary claims | Check what a gluten-free or vegan claim describes, then assess other allergen declarations separately. In the UK, the Food Standards Agency sets the gluten-free limit at no more than 20 mg/kg in food as sold. | A gluten-free or vegan label may help me narrow a choice, but it cannot answer whether the rice cakes meet my other allergy requirements. |
Sainsbury's states that its plain rice cakes are unsuitable for customers with a milk allergy because of manufacturing methods. ASDA's slightly salted cakes carry a may-contain-soya statement.
Check the ingredients and warnings on the exact pack against your specific allergy; use dietary claims only for what they actually describe.
ASDA lists 50 kcal per 13 g serving for Snack a Jacks Jumbo Caramel, which contains soya and may contain other listed allergens. Sainsbury's lists soya in Kallo Dark Chocolate Rice Cake Minis and precautionary warnings for milk, sesame and nuts.
Screen the allergens first. Then compare calories on a consistent per-cake, per-serving or per-pack basis.
Tesco, Sainsbury's, ASDA and M&S warn that product information can change, including ingredients or allergy advice.
Use listings to shortlist rice cakes, but check the physical pack you receive or buy before eating them.
These examples show why the exact rice-cake variant and its current label matter more than the brand name alone.
Tesco lists 27 kcal per 7.2 g cake for its Lightly Salted Rice Cakes.
Sainsbury's lists 29 kcal per cake for its 135 g Rice Cakes.
ASDA lists 30 kcal per cake for its Slightly Salted Rice Cakes.
Kallo rice cakes include different savoury and chocolate formats, with different serving sizes and allergen declarations.
Snack a Jacks offers flavoured rice-and-corn snacks, including a Jumbo Caramel sharing product with a stated 13 g serving.
M&S lists wholegrain brown rice and salt as ingredients for its Lightly Salted Rice Cakes.
These Joybuy options include a lightly salted rice cake and flavoured alternatives. Check each current pack for your allergen and its per-cake or serving information before deciding.
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If you want a lightly salted option, check the pack's calories per cake and its ingredient and allergen statements. In particular, check whether any milk warning affects your choice.
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This savoury variant is a different choice from a plain rice cake. Its listed seasoning contains milk ingredients, so it is not suitable for someone with a milk allergy; check the current pack for its full ingredient list and serving information.
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For a caramel-flavoured option, check the current pack for soya and other allergen statements before comparing its stated serving with a plain cake. Do not treat figures from a differently named caramel product as this pack's nutrition information.
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If you are considering an apple-and-cinnamon flavour, use the physical pack to check ingredients and warnings for milk, soya and sesame before making an allergy decision. Compare calories using the serving stated on that pack.
No. Sainsbury's says its plain rice cakes are unsuitable for customers with a milk allergy because of manufacturing methods, while ASDA's Slightly Salted Rice Cakes may contain soya. Check the current pack against your specific allergy.
The Food Standards Agency describes precautionary allergen labelling as a warning that a regulated allergen could be unintentionally present, for example through cross-contact. It is distinct from an ingredient declaration, but it matters when the named allergen is relevant to you.
No. The Food Standards Agency states that food labelled gluten-free in the UK must contain no more than 20 mg/kg gluten as sold. That claim does not establish whether the rice cakes contain or may contain milk, soya, sesame, nuts or another allergen.
For the amount you plan to eat, start with kcal per cake or the stated serving and check how many cakes that represents. Tesco, Sainsbury's and ASDA list 27, 29 and 30 kcal per cake respectively for the plain or slightly salted examples here. A per-100 g figure needs the individual cake weight before you can compare it on the same basis.