Milk (lactose-free)

Why milk (lactose-free) is rated low

Lactose free milk is ordinary cow's milk with the lactase enzyme added, and that enzyme splits the milk sugar before the carton ever reaches the shop. It is low at about 250mL, a full glass, and no FODMAP group reaches a meaningful level at that serve. It behaves and tastes like ordinary milk in coffee, on cereal and in cooking. What low does not mean is dairy free. This is real dairy, made from real milk, so it is not an answer to a milk allergy and it is not a plant milk.

What changes your risk

• Lactose free processing This is the whole story of the food. Adding lactase splits the milk sugar in advance, which is why lactose free milk behaves so differently from ordinary milk on this diet while tasting, pouring, frothing and baking the same.
• What gets added to it Flavoured, chocolate and sweetened lactose free milks are different products. Anything sweetened with xylitol or another sugar alcohol, or thickened with inulin or chicory root fibre, brings a load the plain carton does not have, so the rating here belongs to plain lactose free milk.
• The rest of the meal No FODMAP group reaches a meaningful level in a glass of this milk, so its low rating is about the milk and nothing else. It does not offset the rest of the plate, and a meal built around high FODMAP foods is still that meal with lactose free milk in it.
• Heat changes nothing, and does not need to Boiling, frothing, baking or reducing lactose free milk leaves it where it is, because the milk sugar has already been split before it goes in the pan.
• A glass at a time The low serve is about 250mL. Spreading glasses across the day rather than pouring one very large drink keeps each serve at that amount.

What else works

Lactose free milk is already the swap most people arrive here looking for, so the useful list is what sits beside it. Lactose free yoghurt does the same job on the yoghurt shelf, and hard cheeses such as cheddar, parmesan and swiss carry very little milk sugar once they are made. The lookalikes worth separating out are the dairy products that have not been treated: ordinary cow's milk, cream, evaporated and condensed milk, ice cream, ordinary yoghurt, and soft fresh cheeses such as ricotta, cottage cheese and cream cheese. A carton labelled A2 is not a lactose free milk, it is ordinary milk with the milk sugar still in it, and it carries its own separate rating.

How to keep it low

Look for lactose free on the carton rather than dairy free, since the two labels sit near each other and mean different things. It lives in the same chilled section as ordinary milk, keeps the same way, and can be swapped in measure for measure in baking, custards, white sauces and coffee without adjusting anything else. It often tastes a little sweeter than ordinary milk, which is most noticeable in tea and worth expecting rather than being surprised by. If the household is sharing a fridge, making the lactose free carton the default saves the daily decision, since it works for everyone. And since this is real dairy, it is not the carton to reach for if a milk allergy is the actual concern.

Common questions

is lactose free milk low fodmap

Yes. It is low at about 250mL, because the lactase enzyme has already split the milk sugar, and no FODMAP group reaches a meaningful level at that serve.

how much lactose free milk can i have

About 250mL, a full glass, is low. Spreading glasses across the day keeps each serve at that amount.

is lactose free milk the same as dairy free milk

No. Lactose free milk is ordinary cow's milk with the milk sugar split by an added enzyme, so it is still dairy and is not suitable for a milk allergy. Dairy free milks are made from plants instead.

can i drink lactose free milk on the elimination phase

Yes, at about 250mL. It is one of the standard swaps for ordinary milk during elimination, and it works the same way in coffee, on cereal and in cooking.