Choose an organic soya drink for a post-gym snack if organic production matters to you, but consider what else you will eat with it. A 250 ml serving of the checked Alpro and Plenish organic drinks provides about 8–8.25 g protein; the British Association of Sport and Exercise Sciences discusses roughly 20–30 g per meal for an approximately 80 kg athlete, so the drink alone does not reach that reference amount. If the drink’s protein contribution matters more than organic status, compare higher-protein formulations, and check the exact carton for fortification and allergens.
Who is this choice for?
Gym-goers who prefer organic food
If you want organic soya drink after training, compare the protein in the amount you will pour with the food you plan to eat alongside it. Alpro and Plenish list 3.3 g and 3.2 g protein per 100 ml respectively for their checked organic drinks.
Vegan or dairy-free exercisers
If you regularly use a plant drink instead of dairy, check the exact carton for added nutrients. The NHS advises people following a strict vegan diet to check whether plant-based drinks contain iodine; organic status does not answer that question.
Shoppers looking for a short ingredient list
If you want a simple drink for a smoothie, oats or a snack, the checked Plenish Organic No Added Sugar Soya listing names spring water and organic soybeans as its ingredients. Check the current pack if ingredients or allergens are decisive for you.
What should you check?
Start with the drink’s protein per 100 ml and the amount you expect to pour, then check the organic claim and the exact pack’s nutrient and allergen information.
| Priority | What to check | Your needs |
| Protein quantity |
Read protein per 100 ml and calculate it for your portion. Alpro and Plenish’s checked organic drinks list 3.3 g and 3.2 g per 100 ml; Alpro’s separate High Protein Plain drink lists 5.0 g per 100 ml. The British Association of Sport and Exercise Sciences discusses roughly 20–30 g per meal for an approximately 80 kg athlete, not a target for every shopper. |
I want to know how much protein the drink contributes to my snack, especially if I will not eat anything with it. |
| Organic claim |
Check the organic wording and certification information on the pack. UK government guidance says an organic food label requires compliance with organic production rules and certification by an approved organic control body. |
Organic production matters to me, so I want the claim to apply to the exact drink I buy. |
| Ingredients and sugars |
Read the full ingredient list and sugars value on the current carton. The checked Plenish organic drink lists spring water and organic soybeans and is described as having no added sugar; Alpro Organic lists 0 g sugars per 100 ml. |
For my smoothie or oats, I would prefer a drink whose ingredients and sugars value I can check before choosing it. |
| Fortification |
Look for iodine, calcium and vitamins on the exact nutrition panel rather than inferring them from the organic label. The NHS notes that some plant-based drinks contain added iodine and advises strict vegans to check the label. |
If I regularly replace dairy with soya drink, I want to know which added nutrients this particular carton contains. |
| Allergens |
Check the soya declaration and any precautionary statements on the pack. The Food Standards Agency identifies soya as an allergen; the checked Plenish listing also says it may contain nuts. |
I need the allergen information for the exact product, particularly if soya or nuts are relevant to me. |
Common buying mistakes
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Treating a protein-containing drink as the whole snack
A 250 ml serving of the checked organic drinks provides about 8–8.25 g protein. That is below the roughly 20–30 g per-meal amount discussed by the British Association of Sport and Exercise Sciences for an approximately 80 kg athlete.
Work out the protein in the portion you will drink and consider a protein-containing food alongside it. If you are comparing a higher-protein drink instead, check its own label rather than assuming it is organic.
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Assuming organic also means fortified
Organic labelling concerns production and certification, not whether iodine, calcium or vitamins have been added. The NHS advises strict vegans to check plant-drink labels for iodine.
If you regularly use soya drink instead of dairy, read the nutrient information on the exact carton.
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Overlooking allergen statements on a plant-based drink
Organic status does not remove soya, which the Food Standards Agency identifies as an allergen. The checked Plenish product also carries a may-contain-nuts statement.
Do not choose a soya drink if you have a soya allergy. Check the current pack for other relevant allergen and precautionary information.
Brands and retailer references
These product and retailer references help distinguish organic drinks from other soya formulations; they do not indicate what a shop has in stock today.
Alpro
Alpro lists an Organic Soya drink and a separate High Protein Plain soya drink.
- Alpro UK lists 3.3 g protein and 0 g sugars per 100 ml for Organic Soya.
- Its High Protein Plain drink lists 5.0 g protein per 100 ml, but that checked product is not identified as organic.
Plenish
The checked Plenish Organic No Added Sugar Soya listing names spring water and organic soybeans as its ingredients.
- Waitrose lists 3.2 g protein per 100 ml for this drink.
- The listing says the product may contain nuts; check the current pack if that matters to you.
Tesco
Tesco’s grocery listings identify Alpro Organic Soya and Plenish Organic Soya as separate products to compare.
- The listings give product-specific descriptions rather than treating all soya drinks as equivalent.
- Check the chosen carton for its current ingredients, nutrition and organic information.
Sainsbury's
Sainsbury’s has a product listing for Alpro Organic Soya No Sugars 1 L.
- The listing identifies the drink as an organic soya product.
- Use the exact pack to confirm the information relevant to your choice.
Waitrose
Waitrose lists Plenish Organic No Added Sugar Soya with ingredient, protein and allergen details.
- Its listing specifies 3.2 g protein per 100 ml and names the two ingredients.
- Waitrose advises checking the physical label because recipes can change.
Alpro soya drink on Joybuy
This Alpro soya drink listing is relevant if you want a soya-based drink alongside a post-gym snack. Check the pack’s organic certification details and pack quantity before deciding whether it meets those preferences.
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Alpro Soya Drink OG (listing marked ‘6’)
For a post-gym snack, the listed 3.3 g protein and 0 g sugars per 100 ml let you assess what your portion contributes alongside food. The listed soya base contains water and 8.8% hulled soya beans. Check the pack for organic certification details and fortification; also confirm the pack count, as the title starts with ‘6’ while the description states 1 L. Contains soya. The listing says to refrigerate after opening and use within five days.
Joybuy
Frequently asked questions
Is organic soya milk enough on its own after the gym?
It depends on what you intend the drink to contribute to your snack. A 250 ml serving of the checked Alpro and Plenish organic drinks provides about 8–8.25 g protein, below the roughly 20–30 g per-meal amount discussed by the British Association of Sport and Exercise Sciences for an approximately 80 kg athlete. Consider what protein-containing food you will have with the drink if that comparison is relevant to you.
What should an organic claim on a UK soya drink mean?
UK government guidance says food labelled organic must meet organic production rules, have at least 95% organic agricultural ingredients where applicable, and be certified by an approved organic control body. Check the claim and certification information on the exact pack rather than relying on its appearance.
Does an organic soya drink contain added iodine?
Organic status alone does not tell you whether iodine has been added. The NHS says some plant-based drinks are fortified with iodine and advises people following a strict vegan diet to check the label. Read the nutrition panel of the drink you are considering.
Can I choose organic soya milk if I have a soya allergy?
No. Organic soya drink still contains soya, which the Food Standards Agency identifies as an allergen. Check the exact pack for other relevant statements too: the checked Plenish listing says it may contain nuts.
How should I store these organic soya drinks after opening?
Follow the instructions on the carton you buy. Joybuy’s checked Alpro Organic listing says to refrigerate after opening and use within five days; Waitrose’s checked Plenish listing says to refrigerate at 0–6°C and consume within four days.