Supermarket lactose-free cow’s milk is not a dairy-free choice: it still contains the milk proteins relevant to cow’s-milk protein allergy. During weaning, breast milk or first infant formula remains a baby’s main drink until 12 months, according to the NHS. If lactose intolerance or milk allergy is suspected, the appropriate infant feeding choice depends on which condition has been assessed; do not substitute an ordinary lactose-free milk drink or plant-based drink for the baby’s main milk.
Starting solids does not mean changing a baby’s main milk drink. NHS guidance says weaning happens alongside breast milk or infant formula, with first infant formula the alternative to breast milk during the first year.
The choice is between infant feeding options, not between supermarket milk cartons. Healthier Together NHS notes that lactose intolerance in babies can be temporary and that symptoms do not automatically mean changing to a specialist formula.
Cow’s-milk protein allergy (CMPA) calls for a milk-protein-free feeding plan advised by the baby’s healthcare team. Allergy UK states that lactose-free milk still contains milk protein and is not suitable for milk allergy.
Start with the baby’s age and the reason for avoiding milk, then check whether a product is an infant formula, a dairy milk drink or a plant-based drink.
| Priority | What to check | Your needs |
|---|---|---|
| Main milk before 12 months | Check whether the product is first infant formula or an ordinary drinking milk. NHS guidance says breast milk or first infant formula remains the main drink until 12 months. | My baby has started solids, but still needs an age-appropriate main milk drink. |
| Milk-protein allergy | Read the ingredients and allergen declaration for cow’s milk. Allergy UK says removing lactose does not remove the milk protein relevant to milk allergy; agree a feeding plan with the baby’s healthcare team. | If CMPA is suspected or diagnosed, I need to avoid cow’s-milk protein, not just lactose. |
| Lactose intolerance | Check that any proposed substitute is an infant formula intended for the baby’s age, rather than a grocery milk drink. Discuss whether a change is needed with a healthcare professional; Healthier Together NHS notes that infant lactose intolerance may be temporary. | I want to know whether my baby needs a different formula before changing feeds. |
| Plant-based drinks | Do not use a plant-based drink as the main milk before 12 months. For a drink from 12 months, check that it is unsweetened and calcium-fortified; NHS guidance says to avoid rice drinks until at least age 5. | When dairy is excluded, I need to distinguish an ingredient used in weaning food from a replacement main drink. |
Lactose-free cow’s milk still contains milk proteins. Allergy UK says it is not suitable for milk allergy.
For suspected or diagnosed CMPA, follow the baby’s milk-protein-free plan and check each product’s ingredients and allergen declaration.
Starting solids does not make ordinary lactose-free drinking milk an infant formula. The NHS says breast milk or first infant formula should remain the main drink until 12 months.
If a change in feeding is being considered because of symptoms, ask a healthcare professional which infant product, if any, is appropriate.
Plant-based drinks vary in their composition and should not replace breast milk or formula as the main drink before 12 months, according to NHS guidance.
Ask for feeding advice where CMPA or other dietary restrictions are involved. From 12 months, check the drink’s ingredients and fortification; avoid rice drinks until at least age 5.
A milk ladder is not appropriate for every allergy presentation. Allergy UK advises against its use for children diagnosed with food protein-induced enterocolitis syndrome (FPIES), with reintroduction recommended in hospital.
Follow the child’s healthcare team’s reintroduction advice; lactose-free cow’s milk is not a test for whether milk protein is tolerated.
Retail lactose-free milk drinks and lactose-free infant formula are different products, even when they appear in the same retailer’s range.
A range of lactose-free cow’s-milk drinks, including whole and semi-skimmed products listed by UK retailers.
Its listings include lactose-free dairy drinks and separately labelled lactose-free infant formulas.
Its own-label lactose-free skimmed dairy drink lists cow’s milk and lactase enzyme among its ingredients.
Its listings place lactose-free dairy products and plant-based drinks within a broader browsing category.
This lactose-free infant formula relates to the route where a healthcare professional has assessed a baby’s feeding needs. It is not a dairy-free option for cow’s-milk protein allergy.
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For a baby whose lactose intolerance has been professionally assessed, this is an infant formula rather than an ordinary lactose-free drinking milk. The product is labelled from birth. Aptamil’s product information at Tesco says it is not suitable for cow’s-milk protein allergy and should be used on the advice of a healthcare professional.
No. Lactose-free cow’s milk is still dairy milk and contains milk protein. Allergy UK says it is not suitable for milk allergy, so check the ingredients rather than relying on “lactose-free” for a baby with CMPA.
Not before 12 months. NHS guidance says breast milk or first infant formula should remain the main drink during the first year. Pasteurised whole cow’s milk can be used in cooking or mixed with food from around 6 months, but that does not make it a replacement main drink.
Discuss symptoms and feeding with a healthcare professional before changing milk. Healthier Together NHS notes that lactose intolerance in babies may be temporary; if a lactose-free infant formula is advised, check the specific product’s instructions and allergy information.
They should not replace breast milk or formula as the main drink before 12 months. NHS dietetic guidance says suitable plant-based alternatives can be used in cooking and weaning foods from 6 months; NHS guidance discusses unsweetened, calcium-fortified drinks from 12 months and says to avoid rice drinks until at least age 5.
No. Healthier Together NHS guidance says other mammalian milks, including goat’s and sheep’s milk, have similar proteins and are not suitable substitutes for a baby on a cow’s-milk-free diet. Follow the baby’s advised feeding plan.