If you tolerate milk proteins but want to avoid lactose, lactose-free cow’s milk can form part of a post-workout meal; a lactose-free, milk-based protein shake offers more protein in one portable serving when that matters to you. If you avoid dairy or follow a vegan diet, choose a dairy-free plant drink instead and compare protein per serving. Lactose-free cow’s milk is not suitable for a milk allergy.
If lactose causes digestive symptoms but you tolerate milk proteins, lactose-free cow’s milk keeps a dairy-milk format for cereal, smoothies or a meal after exercise. Sainsbury’s lists 7 g protein per 200 ml for Arla LactoFREE semi-skimmed milk, so consider what else you are having with it if protein amount is important to you.
A ready-to-drink shake may suit a journey home from training when you want protein in one bottle. Sainsbury’s lists 35 g per 330 ml for For Goodness Shakes Chocolate, but it is milk-based: lactose-free does not mean dairy-free.
Choose a drink explicitly labelled dairy-free rather than lactose-free dairy. Waitrose lists Alpro Soya Long Life Dairy Free Drink as plant-based, with 3.3 g protein per 100 ml and added calcium, iodine and vitamins B2, B12 and D2. Check the soya allergen declaration if relevant.
Start with whether you can have milk proteins, then compare protein in the amount you will drink and the format that fits your routine.
| Priority | What to check | Your needs |
|---|---|---|
| Milk and allergens | Read the ingredients and allergen declaration. NHS guidance distinguishes lactose intolerance from food allergy; the Arla LactoFREE label cited by Waitrose says its cow’s milk is not suitable for people with a milk allergy. Check plant drinks for their own allergens, including soya. | I need to avoid lactose, but can I still have milk proteins? If not, I’ll look for an explicitly dairy-free drink rather than relying on the words “lactose-free”. |
| Protein per serving | Compare the amount you will actually drink, not just the per-100-ml figure. Sainsbury’s lists 7 g per 200 ml for Arla LactoFREE semi-skimmed milk and 35 g per 330 ml for For Goodness Shakes Chocolate. The International Society of Sports Nutrition discusses 20–40 g as an acute protein dose for healthy exercising individuals. | Am I having this drink with other protein-containing food, or do I want a larger amount of protein in one bottle? |
| Plant-drink ingredients | If replacing dairy, check the plant ingredient, protein per serving and any added nutrients. Waitrose lists its Alpro Soya Long Life Dairy Free Drink with 3.3 g protein per 100 ml and added calcium, iodine and vitamins B2, B12 and D2. | I want a dairy-free option for a meal or smoothie, and I’d like to know what the particular drink contributes rather than assuming all plant drinks are alike. |
| Serving format | Check pack size, whether the drink is ready to drink, and the storage instructions before and after opening. Compare a whole bottle with the portion you would pour from a carton. | Will I drink it on the way home, or use it as part of food I prepare after exercise? |
Lactose-free cow’s milk still contains milk proteins. NHS guidance distinguishes lactose intolerance from food allergy, and the Arla LactoFREE label cited by Waitrose warns that the product is unsuitable for people with a milk allergy.
If you need to avoid milk proteins, choose an explicitly dairy-free product and check its current allergen declaration.
Sainsbury’s lists 7 g protein in 200 ml of Arla LactoFREE semi-skimmed milk, compared with 35 g in a 330 ml bottle of For Goodness Shakes Chocolate. They serve different purposes when one is used with food and the other is drunk by itself.
Compare protein in the portion you plan to have, then decide whether the drink will accompany other protein-containing food.
Ingredient, allergen and nutrition details matter particularly when you must avoid milk or soya, or are comparing protein amounts between specific drinks.
Read the physical pack before use, including its storage instructions after opening.
These examples show the difference between lactose-free dairy, milk-based shakes and dairy-free soya; compare individual products rather than assuming everything in a range has the same ingredients.
A lactose-free cow’s-milk range with different milk formats.
An own-label option for lactose-free dairy drinks.
A retailer listing lactose-free milk alongside a milk-based, ready-to-drink protein shake.
M&S lists lactose-free cow’s milk in semi-skimmed and whole varieties, as well as a milk-based protein shake.
A plant-based alternative to lactose-free cow’s milk.
These plant and soya drinks are options to consider when choosing a drink to have with a post-workout meal. Check each pack’s dairy-free status, allergens and protein per serving for your needs; this selection does not include the lactose-free cow’s milk or milk-based shakes discussed above.
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A 1-litre plant drink to consider for a meal or smoothie after exercise. Check the exact pack for its ingredients, allergens and protein per serving before treating it as a dairy-free alternative.
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A 920 ml soybean drink to consider alongside food after exercise. Check the current pack for dairy ingredients, the soya allergen declaration and protein per serving.
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A 1-litre soy bean drink that could be poured with a meal or used in a smoothie. Check its ingredients if you need to avoid dairy, and compare the stated protein in the portion you will use.
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A 300 ml pandan-flavoured soy bean drink in a smaller pack for drinking away from home. Check the ingredient and allergen declarations if dairy or soya matters to you, and compare protein for the whole pack.
No, lactose-free cow’s milk is still dairy and contains milk proteins. Waitrose’s Arla LactoFREE listing names milk as an ingredient and says it is unsuitable for people with a milk allergy. Choose an explicitly dairy-free drink if you need to avoid milk proteins or follow a vegan diet.
A glass can contribute protein, but check the amount against the rest of your food rather than treating it as a high-protein shake. Sainsbury’s lists 7 g per 200 ml for Arla LactoFREE semi-skimmed milk; the International Society of Sports Nutrition discusses 20–40 g as an acute protein dose for healthy exercising individuals.
A dairy-free soya drink is one option to compare for a meal or smoothie. Waitrose lists Alpro Soya Long Life Dairy Free Drink as plant-based, with 3.3 g protein per 100 ml and added calcium, iodine and vitamins B2, B12 and D2. Check the portion you will drink and what else is in your meal if protein amount matters to you.
Check the current ingredients and allergen declaration for the particular drink. The NHS distinguishes lactose intolerance from food allergy, while the Arla LactoFREE cow’s-milk listing explicitly warns that it is unsuitable for people with a milk allergy. A plant drink may have other allergens, such as soya.