For an organic soya drink after exercise, Alpro Organic Soya lists 3.3g protein per 100ml, while Plenish Organic Soya lists 3.2g and has a stated two-ingredient recipe; choose according to which distinction matters to you. A 250ml serving provides about 8.25g or 8g protein respectively, below the 20–40g acute dose discussed for healthy exercising adults in the International Society of Sports Nutrition’s 2017 position stand, so consider the rest of your meal if that is your aim. The UK government also states that organic plant-based drinks cannot be fortified with nutrients.
An organic soya drink can be the liquid part of a post-workout meal. Check its protein per serving alongside the other foods you plan to eat, rather than treating a glass as the whole protein portion.
Organic status and nutrient fortification are different considerations. The UK government states that organic plant-based drinks cannot be fortified, while NHS vegan-diet guidance discusses fortified alternatives and planning for nutrients including calcium, vitamin B12, vitamin D and iodine.
Ocado lists spring water and organic soybeans as the ingredients in Plenish Organic Soya Unsweetened. Its stated 250ml serving provides 8g protein, so ingredient simplicity does not remove the need to consider the rest of a post-workout meal.
Start with the amount you intend to pour, then check whether the organic label, ingredients and allergen declaration fit your needs.
| Priority | What to check | Your needs |
|---|---|---|
| Protein per serving | Compare protein on the same per-100ml basis, then calculate it for your portion. Joybuy UK lists 3.3g per 100ml for Alpro Organic Soya; Ocado lists 3.2g for Plenish Organic Soya. Their respective 250ml portions provide about 8.25g and 8g. | I want the drink to contribute to a post-workout meal without assuming it supplies the whole protein portion. For healthy exercising adults, the International Society of Sports Nutrition’s 2017 position stand discusses acute protein doses of 20–40g. |
| Fortification | Check the nutrition label for the nutrients relevant to you. The UK government states that plant-based drinks labelled organic cannot be fortified with nutrients; NHS vegan-diet guidance discusses fortified alternatives and planning for calcium, vitamin B12, vitamin D and iodine. | If I rely on plant drinks in place of dairy, I need to consider where those nutrients come from elsewhere in my diet. |
| Ingredients and sugar | Read the ingredients and distinguish a no-added-sugar statement from the amount of sugars declared. Ocado lists spring water and organic soybeans for Plenish, with no added sugar, oils or additives stated; Joybuy UK lists 0g sugars per 100ml for Alpro. | I prefer a plain drink for a smoothie or meal and want to decide whether a short ingredient list matters more to me than the small difference in declared protein. |
| Organic label | Look for an explicit organic claim rather than relying on words such as ‘natural’. UK government organic labelling rules require applicable production standards and certification by an approved organic control body. | Organic certification is part of my buying decision, even though it does not tell me how much protein a serving contains. |
| Allergens | Read the current allergen declaration on the carton. The Food Standards Agency identifies soya as an allergen, and both Alpro Organic Soya and Plenish Organic Soya contain soya. | A dairy-free label does not answer my question about soya allergy; I need to check the ingredients and any relevant precautionary labelling. |
A 250ml serving provides about 8.25g protein from Alpro Organic Soya or 8g from Plenish Organic Soya. The International Society of Sports Nutrition’s 2017 position stand discusses acute doses of 20–40g for healthy exercising adults.
If you are aiming for a more substantial protein portion, account for other protein-containing food in the meal or smoothie.
The UK government states that organic plant-based drinks cannot be fortified with nutrients. An organic soya drink therefore should not be chosen on the assumption that it contains added calcium or vitamins.
If you use plant drinks in place of dairy, check how other foods fit into your diet; NHS vegan-diet guidance discusses fortified alternatives and nutrients that need planning.
Joybuy UK lists 3.3g protein per 100ml for Alpro Organic Soya, compared with 3.2g for Plenish Organic Soya on Ocado. That comparison alone does not tell you whether the whole post-workout meal provides the protein you intend.
Compare your serving size and the rest of the meal, then weigh the declared ingredients if they matter to your choice.
Both organic soya drinks contain soya, which the Food Standards Agency identifies as an allergen. Dairy-free status does not change that.
Do not choose a soya drink if you have a soya allergy. Check the current carton for its full allergen declaration and any relevant precautionary information.
Alpro Organic Soya is a plain organic option to compare by serving size and declared nutrition.
Plenish Organic Soya Unsweetened is an option for shoppers comparing stated ingredients as well as protein.
Tesco’s soya-drinks listings provide a retailer route for checking Alpro Organic Soya and Plenish Organic Soya.
Sainsbury’s lists Alpro Organic Soya and Plenish Organic Soya as separate products.
Asda’s Alpro Organic Soya listing offers another place to inspect that product’s nutrition panel.
This Alpro option is relevant if you want an organic soya drink as part of a post-workout meal or smoothie. Confirm the pack contents as well as the nutrition information before ordering.
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For use as part of a post-workout meal or smoothie, this listing declares 3.3g protein and 0g sugars per 100ml. A 250ml portion provides about 8.25g protein; the International Society of Sports Nutrition’s 2017 position stand discusses acute doses of 20–40g for healthy exercising adults, so consider other protein-containing food if that is your aim. Contains soya. The listing name begins with ‘6’, while its description states 1L: confirm the number and size of cartons before ordering.
Not if you are aiming for the 20–40g acute protein dose discussed for healthy exercising adults in the International Society of Sports Nutrition’s 2017 position stand. A 250ml serving provides about 8.25g protein from Alpro Organic Soya or 8g from Plenish Organic Soya; consider the protein in the rest of your meal.
No. The UK government’s 2025 assessment states that plant-based drinks labelled organic in the UK cannot be fortified with nutrients. If you rely on plant drinks in place of dairy, check your wider diet; NHS vegan-diet guidance discusses fortified alternatives and planning for nutrients including calcium, vitamin B12, vitamin D and iodine.
Under UK government organic labelling rules, the product must meet organic production requirements and the product and suppliers must be certified by an approved organic control body. For food products, at least 95% of the agricultural ingredients must be organic where that requirement applies; a description such as ‘natural’ is not the same claim.
No. Soya is an allergen identified by the Food Standards Agency, and both Alpro Organic Soya and Plenish Organic Soya contain it. Check the current carton’s allergen declaration for any other information relevant to you.
Joybuy UK’s Alpro Organic Soya product information says to refrigerate it after opening and use it within 5 days. Check the instructions on the carton you buy.