Can I eat ice cream while pregnant?

The verdict

Packaged ice cream made with pasteurised milk is safe, everywhere, with no limit. That covers essentially everything sold in a tub, a wrapper or a box in a supermarket freezer.

Soft serve is a different question and the answer depends on where you are. Ireland and Australia both tell pregnant women not to have it. The UK does not mention it. The United States does not restrict it for pregnancy either.

Unpasteurised ice cream is off the list in every country, without exception.

Why the machine is the issue

Soft serve is not softer because of the recipe. It is softer because it is held in a machine at a warmer temperature than a freezer, around minus 4 to minus 7 degrees rather than minus 18, and whipped with air as it is dispensed.

Pregnancy, Birth and Baby gives the reason in one sentence: soft-serve ice cream is stored at a temperature that allows listeria to grow. FSANZ's precaution for the safer alternative is the mirror image - keep the ice cream frozen hard.

The second half of the problem is the machine itself. A soft-serve unit has internal pipework, a mixing chamber and dispensing nozzles that stay wet and cool between servings. If it is not stripped and cleaned to schedule, it is a place where listeria can establish itself and then seed every cone that follows. Hard-frozen ice cream in a sealed tub has no equivalent.

So the ice cream mix is usually pasteurised in both cases. What differs is what happens to it afterwards.

Why listeria and not something else

Listeria is singled out because of a property FSANZ states directly: it can grow over a wide temperature range and even in the fridge. Nothing else in ordinary food safety behaves that way. Refrigeration and near-freezing hold most bacteria still; listeria continues, slowly.

And in pregnancy the consequences are disproportionate. The NHS states that listeriosis can cause miscarriage or stillbirth, or make a newborn baby seriously unwell, even when the mother's own illness is mild or flu-like.

What counts as safe

Working through the freezer aisle and the dessert menu:

• Tubs, cones, sticks and bars from a supermarket freezer. Pasteurised and hard frozen. Safe.
• Scooped ice cream from a parlour. Hard frozen and made from pasteurised mix. Not restricted anywhere. Scoop hygiene and the water the scoop sits in are ordinary hygiene concerns rather than pregnancy rules.
• Gelato. Named as fine by Australian guidance, which specifies hard-frozen ice cream and gelato as acceptable.
• Soft serve, whipped ice cream and 99s. Avoid in Ireland and Australia. Not mentioned in UK or US pregnancy guidance.
• Frozen yoghurt from a dispensing machine. The same machine argument applies, whatever it is called.
• Ice cream made with raw or unpasteurised milk. Avoid everywhere. This is on the NHS avoid list explicitly.
• Home-made ice cream. The dairy is usually pasteurised, but many recipes use a raw egg custard base. In the UK, British Lion or Laid in Britain hen eggs may be eaten raw or partially cooked; other eggs should be well cooked. Elsewhere, raw egg in a dessert is the part to think about.

Toppings, mix-ins and the things that ride along

An ice cream is often not the risky part of what you are eating.

Cookie dough and brownie batter mix-ins are raw flour and often raw egg. FSANZ lists raw doughs and batters containing egg in its higher-risk column with cooked product as the alternative. Raw flour is not a sterile ingredient.

Soft cheese swirls, mascarpone and blue cheese in a fancy scoop follow the cheese rules, not the ice cream rules.

Coffee and chocolate flavours contribute caffeine, though modestly. The NHS gives less than 25mg for a 50g bar of plain dark chocolate, so a chocolate ice cream is a small contribution to the 200mg daily caffeine ceiling rather than a meaningful one.

Alcohol-containing flavours - rum and raisin, an affogato with liqueur, a boozy sorbet - are alcohol, and every authority advises against alcohol in pregnancy.

How much is too much

No authority sets a quantity limit for ice cream in pregnancy. The only relevant number is the general one about free sugars: the NHS reference intake for adults is no more than 30g a day, and ice cream is a straightforward free sugar food.

If you are managing gestational diabetes, ice cream is a food your team will want you to account for rather than one you are banned from, and your own monitoring is more informative than any general figure.

If you have already had a 99

Very likely nothing follows. Listeriosis is rare, and the great majority of soft-serve machines are cleaned properly.

The NHS position on foods that should have been avoided is that a small amount is unlikely to affect your baby if you did not get ill. There is no test on the basis of exposure and nothing given preventively.

What to watch for is a flu-like illness in the following days and weeks: a high temperature, aches, chills, sometimes sickness or diarrhoea. Listeriosis can take weeks to appear, so it will not necessarily feel connected. If you become unwell, contact your midwife, GP or 111 and say that you are pregnant and have eaten soft-serve ice cream.

Where guidance differs

Clearly and substantively, on soft serve alone.

Ireland and Australia both name it and both say no. The Irish list places soft-serve ice cream, with a 99 as the example, alongside unpasteurised dairy and mould-ripened cheese. Australia's is a formal FSANZ table row with a stated alternative.

The UK does not mention soft serve in either direction. Its rule is pasteurisation: pasteurised ice cream is safe, unpasteurised is not. Read literally, a soft-serve cone made from pasteurised mix passes UK guidance. The United States is in the same position.

This is a case where the divergence reflects different regulatory histories rather than different science. If you want to satisfy the strictest of the four while living in the UK, the rule is simple: hard-frozen only.