Tea, coffee and cereal users counting carbohydrate
If you use several small portions throughout the day, compare carbohydrate per 100ml and add up the amount you actually pour. An unsweetened label alone does not tell you the carbohydrate figure.
Who is this for?
Dairy-free shoppers checking fortification
If you use soya drink in place of dairy milk, check the exact carton for added calcium, iodine and vitamins rather than assuming every variant has the same formulation.
Long-life carton and cooking users
Unopened storage, instructions after opening and behaviour in hot drinks can matter as much as the nutrition panel when you choose a carton for your routine.
What should you check?
Start with the carbohydrate declaration for the exact drink, then check the quantity you will use and whether the carton format fits your routine.
| Priority | What to check | Your needs |
|---|---|---|
| Carbohydrate | Read carbohydrate, not just sugars, per 100ml on the exact variant. Multiply that figure by the volume you use. | I want to account for the soya drink in my own food plan, including the amount poured into drinks or cereal. Waitrose & Partners lists 0.0g carbohydrate per 100ml for Alpro Soya No Sugars and 0.8g for Waitrose Essential Unsweetened; Sainsbury's lists 1.2g for its Unsweetened Soya Drink. |
| Fortification | Check the current carton for calcium, iodine and the particular vitamins you want. Compare protein using the same per-100ml basis. | If I use soya drink instead of dairy milk, I want to know which nutrients the exact product declares. The Waitrose Essential listing gives 3.4g protein per 100ml, while Sainsbury's lists 2.2g per 100ml for its unsweetened drink. |
| Carton format | Confirm whether the listing is for one carton or several, its total volume and its unopened storage instructions. Read the directions for refrigeration and use after opening. | A larger purchase needs to fit my storage space and the rate at which I finish each carton. The Waitrose Essential long-life and Sainsbury's chilled listings both say to use the drink within three days after opening. |
| Allergy and prescribed diets | Read the current ingredient and allergen panel. For prescribed ketogenic therapy, check the specific product and quantity with the treating team. | I need to avoid soya if it is an allergen for me. If my ketogenic diet is medically prescribed, I need instructions specific to that diet rather than a general low-carbohydrate label comparison. |
Buying pitfalls
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Assuming all unsweetened cartons have the same carbohydrate content
The Alpro, Waitrose Essential and Sainsbury's products listed by their retailers declare different carbohydrate amounts per 100ml, even though they are no-sugars or unsweetened choices.
Compare the carbohydrate line for the exact variant, then calculate it for your usual portion.
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Buying more than you can use after opening
Waitrose Essential and Sainsbury's Unsweetened both specify use within three days after opening. Unopened long-life storage does not extend an opened carton's stated period.
Check the pack count and storage directions, and consider how quickly you will finish each carton.
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Treating a general keto claim as approval for medical therapy
The British Dietetic Association says medical ketogenic therapy should be managed by an experienced ketogenic team; Great Ormond Street Hospital describes diets calculated for the individual.
Ask the treating ketogenic team before substituting a retail soya drink in a prescribed diet.
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Assuming ingredients and fortification are interchangeable
Soya is an ingredient in soya drinks, while added nutrients differ by product and variant.
Check the current pack's ingredients and allergen information, then read its fortification declarations if those nutrients matter to you.
Brand and product-line references
These examples help distinguish particular soya drinks and formats; a brand name alone does not establish a carton's nutrition or storage instructions.
Alpro
The Alpro Soya No Sugars long-life drink listed by Waitrose & Partners is a 1L UHT option.
- Its listing declares 0.0g carbohydrate, 0g sugars and 3.3g protein per 100ml.
- Check the exact Alpro variant: the No Sugars figures should not be applied to another drink in the range.
Sainsbury's
Sainsbury's Unsweetened Soya Drink is a chilled 1L own-label option.
- The listing declares 1.2g carbohydrate and 2.2g protein per 100ml.
- It needs refrigeration and is labelled for use within three days after opening.
Waitrose Essential
Essential Unsweetened Soya Drink is a long-life 1L own-label option.
- Waitrose & Partners lists 0.8g carbohydrate, 0g sugars and 3.4g protein per 100ml.
- Waitrose says to use it within three days after opening and advises gentle heating because it can separate in cooking or hot drinks.
M&S
M&S lists an Unsweetened Soya Drink alongside other soya-drink options.
- The Unsweetened product's nutrition information declares 1.5g carbohydrate and 2.8g protein per 100g.
- Its figures use a per-100g basis; check the current label before comparing them with drinks listed per 100ml.
Tesco
Tesco Groceries lists both long-life and chilled unsweetened 1L Tesco soya drinks.
- The two listed formats give shoppers a choice of unopened storage arrangements.
- Read the nutrition and fortification panel for the particular carton before comparing it with another product.
Joybuy soya drinks
These Alpro options include a No Sugars product labelled as an 8 × 1L pack, another soya drink and a Barista variant for coffee. Compare their individual carbohydrate declarations, and confirm the carton count where a larger quantity matters.
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Alpro Soya No Sugars Long Life Drink, 8 × 1L
For someone choosing a larger quantity while tracking carbohydrate, this product declares 0.0g carbohydrate and 0.0g sugars per 100ml. Its description lists 3.3g protein per 100ml, added calcium and vitamins B2, B12 and D2, and UHT storage before opening. Refrigerate an opened carton and follow its stated five-day use period. Contains soya; check the current pack if allergens are relevant.
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Alpro Soya Drink OG
For a carbohydrate comparison, this product's nutrition information declares 0g carbohydrate and 0g sugars per 100ml, alongside 3.3g protein per 100ml. Its description identifies UHT storage before opening. Confirm the number and volume of cartons if you are buying a larger quantity. Contains soya; check the current pack if allergens are relevant.
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Alpro Soya Barista
This variant's description identifies coffee use, including steaming for microfoam. It declares 2.7g carbohydrate per 100ml, so calculate the amount in the portion you add to coffee when following a carbohydrate-limited routine. Confirm the carton count and total volume if buying in quantity. Contains soya; check the current pack if allergens are relevant.
Common questions
Does unsweetened always mean zero carbohydrate?
No. Waitrose & Partners lists 0.0g carbohydrate per 100ml for Alpro Soya No Sugars and 0.8g for Waitrose Essential Unsweetened; Sainsbury's lists 1.2g for its Unsweetened Soya Drink. Read the carbohydrate line for the exact carton and calculate it for the amount you use.
When does a long-life carton make sense?
Choose a long-life format when unopened ambient storage suits your routine, but check how soon you must finish each carton after opening. Waitrose Essential's long-life drink and Sainsbury's chilled unsweetened drink both specify use within three days after opening.
Can I add unsweetened soya drink to hot drinks or cooking?
Yes, but follow the instructions for the particular product. Waitrose & Partners advises heating its Essential Unsweetened Soya Drink gently and letting hot-drink water cool slightly, because the drink can separate.
Is a supermarket soya drink suitable for a prescribed ketogenic diet?
Confirm the product and quantity with the treating ketogenic team before using it. The British Dietetic Association says medical ketogenic therapy should be managed by an experienced team, and Great Ormond Street Hospital describes diets calculated for the individual.
What should I check if soya allergy is relevant?
Read the current pack's ingredient list and highlighted allergen information before use. Soya is an ingredient in soya drinks, so a carbohydrate figure or fortification list cannot establish whether a product is suitable for someone with a soya allergy.