Milk (lactose-free)

Low FODMAP

Typical portion

Any typical portion Low

Lactose-free milk is Low FODMAP, a real dairy milk with the milk sugar already broken down so there's nothing fermentable left to trouble you.

The lactose in this milk has been split by an enzyme before it reaches you, which is exactly the sugar that makes regular milk tricky, so it stays Low FODMAP at any typical portion.
It behaves and tastes like ordinary milk in coffee, cereal, or cooking, though anything you add or flavor it with can change the overall picture.

Reach for it just as you would regular milk, and it makes an easy swap wherever a recipe calls for dairy milk.

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. That is why no FODMAP subgroup is recorded against it. The data gives a single rung here, Any typical portion, and rates it low. That rating is estimated from how the milk is made rather than from a measured serving, so there is no weight or volume attached to it and there is no larger amount tested here to set against it. 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 sorbitol, 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 subgroup is recorded for 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 foods carrying a real load 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.
Beyond a typical portion the data stops The ladder here has one rung and it covers Any typical portion. There is no larger amount tested, so this page cannot say where, if anywhere, a much bigger amount would sit.

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 lose nearly all their lactose in the making. 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 lactose 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. The data rates it low at Any typical portion, because the lactase enzyme has already split the milk sugar.

how much lactose free milk can i have

The data records a single rung, Any typical portion, and rates it low. It is a qualitative rating rather than a measured amount, so there is no volume to quote and nothing larger has been tested here.

is lactose free milk the same as dairy free milk

No. Lactose free milk is ordinary cow's milk with the lactose 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. 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.

Learn more

Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.

Milk (lactose-free) is an estimated rating: it is inferred from the food's ingredients and composition and cross-checked, not measured directly in the papers below. The low, moderate and high cutoffs are still those of Varney et al. (2017).

References

Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.