What should you check?
Check gluten suitability first, then compare protein for the amount you pour. Sugars, fortification and other allergens are separate label checks.
| Priority | What to check | Your needs |
| Gluten suitability |
Look for a current gluten-free claim; read the ingredients and precautionary allergen information. The Food Standards Agency states that a food labelled gluten free must contain no more than 20mg/kg of gluten as sold to the final consumer. |
I need the drink itself to meet my gluten-free requirement, not just to be made from soya. Coeliac UK notes that foods without naturally occurring gluten can encounter gluten during manufacture or packaging. |
| Protein per pour |
Compare protein per 100ml, then calculate it for your usual pour. Alpro UK lists 5.0g per 100ml for Soya High Protein Drink; Sainsbury's lists 2.2g and ASDA lists 2.0g per 100ml for their unsweetened drinks. |
When I use soya drink in porridge or a smoothie, I want to know how much protein that serving contributes rather than rely on the product name. |
| Sugars |
Read sugars per 100ml alongside protein. ASDA Groceries lists less than 0.5g sugars per 100ml for its unsweetened soya drink, as does Sainsbury's for its version; ASDA Groceries lists 2.5g for Alpro High Protein Soya Original. |
I may prefer an unsweetened drink for routine use, even if the particular examples here list less protein per 100ml than the Alpro high-protein drink. |
| Added nutrients |
Check which nutrients the exact carton lists. Sainsbury's lists calcium and iodine for its Unsweetened Soya Drink; M&S describes its Unsweetened Soya Drink as fortified with calcium, iodine, vitamin D and vitamin B12. |
If soya drink regularly replaces dairy milk for me, I want to compare fortification without assuming that added nutrients establish gluten suitability or protein content. |
| Other allergens |
Check the full declaration even when a drink is labelled gluten free. ASDA Groceries states that its Plant Based Unsweetened Soya contains soya and may contain nuts; M&S says its Unsweetened Soya Drink is not suitable for people with nut or peanut allergy. |
Gluten is not the only allergen I may need to avoid, so I need the declaration for the exact product I buy. |
Relevant brands and retailers
These are product-specific points of comparison, not a list of drinks confirmed to meet every gluten-free and protein requirement.
Alpro
Alpro UK describes its Soya High Protein Drink: Plain 1L as gluten free and lists 5.0g protein per 100ml.
- The gluten-free claim and protein figure address both main label checks for this specific drink.
- ASDA Groceries lists 2.5g sugars per 100ml for Alpro High Protein Soya Original; check the current carton and its soya allergen declaration.
Sainsbury's
Sainsbury's Unsweetened Soya Drink lists 2.2g protein and less than 0.5g sugars per 100ml.
- Its listed nutrients include calcium and iodine.
- Check the current pack for gluten-free suitability; an unsweetened name does not establish it.
ASDA
ASDA Groceries lists 2.0g protein and less than 0.5g sugars per 100ml for Plant Based Unsweetened Soya.
- The per-100ml figures allow a direct comparison with other drinks using the same measure.
- Its allergen advice states that it contains soya and may contain nuts. Check the current pack for gluten suitability.
M&S
M&S describes its Unsweetened Soya Drink as fortified with calcium, iodine, vitamin D and vitamin B12.
- M&S lists 2.8g protein per 100g; note that this is a different measurement basis from figures given per 100ml.
- M&S states that this drink is not suitable for people with nut or peanut allergy. Check the current pack for gluten suitability.
Waitrose
Waitrose & Partners describes Essential Unsweetened Soya Drink as fortified with calcium, vitamin D, vitamin B12, vitamin B2 and iodine.
- Its stated fortification offers specific nutrients to compare with other cartons.
- Check the current carton's protein figure and gluten suitability before deciding whether it meets both priorities.
Tesco
Tesco Groceries lists Alpro High Protein Soya Original Long Life Dairy Free Drink 1L and identifies that product as suitable for coeliacs and vegans.
- The listing gives shoppers another place to identify the specific Alpro high-protein variant.
- Check the product identity and current carton label rather than applying that listing's claims to other Alpro drinks.
Joybuy product options
These Joybuy listings are soya-drink options to assess against your protein and gluten-free requirements. Check each exact carton's current label; their titles alone do not establish that they have the same protein content or gluten-free claim as the Alpro Soya High Protein Drink discussed above.
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6 Alpro Plant Protein 1L
If you are considering this drink for a higher-protein diet, check its protein per 100ml and gluten-free claim on the current carton. The listing title begins with '6' and also says 1L, so confirm the exact pack contents before ordering.
View on Joybuy
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Alpro Soya No Sugars Long Life Drink 8 × 1L
If a no-sugars long-life soya drink suits your routine, compare its protein per 100ml with your usual serving. Check the current carton for gluten-free suitability and allergens rather than treating 'No Sugars' as a gluten-free claim.
View on Joybuy
Frequently asked questions
Is every soya drink suitable for a gluten-free diet?
No. Coeliac UK notes that foods without naturally occurring gluten can encounter cereals containing gluten during processing, packaging or manufacture. Check for a gluten-free claim and read the current ingredients and precautionary allergen information on the exact carton.
What does a gluten-free claim mean in the UK?
The Food Standards Agency states that food labelled gluten free must contain no more than 20mg/kg of gluten as sold to the final consumer. The claim does not mean the food is free from other allergens, including soya.
How do the protein figures compare?
Alpro UK lists 5.0g protein per 100ml for Soya High Protein Drink, equivalent to 12.5g in 250ml. Sainsbury's lists 2.2g per 100ml for Unsweetened Soya Drink and ASDA Groceries lists 2.0g for Plant Based Unsweetened Soya, equivalent to 5.5g and 5.0g respectively in 250ml. Compare the amount you actually use.
Does gluten free mean suitable for someone with a soya allergy?
No. Gluten suitability and soya allergy are separate checks: these soya drinks contain soya. Read the full allergen declaration for the exact product before use.
What should I check if soya drink regularly replaces dairy milk?
Compare protein and the nutrients listed on each carton as well as its gluten and allergen information. For example, Sainsbury's lists calcium and iodine for its Unsweetened Soya Drink, while M&S describes its Unsweetened Soya Drink as fortified with calcium, iodine, vitamin D and vitamin B12; neither fortification statement establishes gluten-free suitability.