Pregnancy comes with a long list of new habits, and working out the foods to avoid for pregnancy is one of the first. It is not about restriction for its own sake. A small number of foods carry a real risk of listeria, salmonella or mercury exposure, and knowing which ones matter (and which don’t) makes mealtimes far less stressful.
Here is a practical, trimester-by-trimester checklist you can keep on the fridge, backed by Australian health guidance rather than internet myths.
This checklist reflects guidance from Better Health Channel (Victorian Government) and the Royal Australian College of GPs. It’s general information, not a substitute for advice from your own GP or midwife.
Quick Reference
| Category | Watch out for | Guidance |
|---|---|---|
| Listeria | Soft cheeses, deli meats, pâté, raw/smoked seafood, soft-serve, pre-cut fruit & veg, unpasteurised dairy | Avoid, unless cooked until steaming hot |
| Salmonella | Raw or runny eggs, undercooked meat & poultry | Cook all the way through |
| Mercury — billfish & shark | Swordfish, broadbill, marlin (often sold as “flake”) | Limit to 150g per fortnight |
| Mercury — orange roughy & catfish | Orange roughy, catfish | Limit to 150g per week |
| Other fish & seafood | Everything else | 2–3 servings per week is considered safe |
| Alcohol | All alcoholic drinks | No known safe level — avoid completely |
| Caffeine | Tea, coffee | Limit, especially as heartburn worsens later on |
Why Food Safety Matters So Much in Pregnancy
Pregnancy changes how your immune system responds to certain bacteria, which is why foods that are normally low-risk become worth avoiding. Listeria is the biggest concern. According to the Royal Australian College of GPs, pregnant women account for more than 25% of all listeriosis cases in Australia, and the infection carries a fatality rate of 20 to 30% among vulnerable groups when it takes hold.
That statistic sounds alarming, but listeria infection in pregnancy is genuinely rare when the main risk foods are avoided. Mercury and salmonella are the other two to know, since both can affect a developing baby if eaten in the wrong amounts or forms.
Foods to Avoid for Pregnancy: The Full List
This is the core list recommended by Better Health Channel, the Victorian Government’s health information service. Keep it somewhere handy for the whole nine months, not just one trimester.
High Risk for Listeria
- Soft and semi-soft cheeses such as brie, camembert and ricotta, unless they’re cooked through until steaming hot (in a pasta bake or pizza, for example)
- Pre-prepared salads, pâté, quiches and delicatessen meats like ham and salami
- Raw seafood, including oysters and sashimi
- Smoked seafood, except canned varieties
- Soft-serve ice cream
- Pre-packaged cut fruit and vegetables
- Any unpasteurised dairy product
Salmonella Risk
- Raw or partially cooked eggs, including in homemade mayonnaise or mousse
- Undercooked meat and poultry
Fish and Mercury: What’s Safe, What’s Not
Fish is genuinely good for you and your baby during pregnancy, but a few species carry enough mercury to warrant limits rather than an outright ban:
- Billfish (swordfish, broadbill and marlin) and shark (often sold as flake): limit to one 150g serving per fortnight
- Orange roughy and catfish: limit to one 150g serving per week
- All other fish and seafood: 2 to 3 servings per week is considered safe
Alcohol
There is no known safe level of alcohol consumption during pregnancy. Alcohol crosses the placenta directly, so the safest approach for you and your baby is to avoid it completely from the point you’re trying to conceive through to birth.
Caffeine
Better Health Channel also recommends limiting tea and coffee during pregnancy, partly because caffeine can worsen heartburn and partly as a general precaution. Smaller, more frequent meals and cutting back on tea and coffee both help with this, particularly later in pregnancy when heartburn tends to worsen.
A Trimester-by-Trimester Checklist
The food safety list above applies for the whole pregnancy, not just one stage. What changes trimester to trimester is how easy it is to stick to, and what else is worth thinking about alongside it.
First Trimester
This is the stage to lock in the habit early, ideally from the moment you get a positive test, since your baby’s development is happening fast even before you feel any different. Morning sickness can make sticking to “safe” meals harder than it sounds, so keep it simple: plain, well-cooked food is both easier on nausea and easier to keep listeria-free. It’s also a good time to look at your other daily habits, not just food. Our guide to prenatal habits to embrace during pregnancy covers the wider picture beyond diet.
Second Trimester
Appetite and energy usually pick back up in the second trimester, and with it comes the temptation to relax a little on food safety, particularly around soft cheeses and deli meats at social occasions. This is the trimester to double down on label-checking and safe food handling rather than assuming morning sickness protected you earlier. Your body is also changing shape quickly now, so if sleep comfort is becoming an issue, a pregnancy pillow is worth looking at alongside your food routine.
Third Trimester
The final stretch is no time to ease off. Your baby’s growth accelerates in the third trimester, and the same listeria, salmonella and mercury risks still apply right up until labour. Keep the fish serving limits and the “hot through” rule for soft cheese in mind at every meal, even as your focus understandably shifts toward the birth itself.
Frequently Asked Questions
- Which cheeses are safe to eat during pregnancy?
- Hard cheeses like cheddar, parmesan and Swiss are considered safe throughout pregnancy. Soft and mould-ripened cheeses such as brie, camembert and ricotta carry a listeria risk unless they’ve been cooked until steaming hot, for example baked into a dish. When in doubt, check the label or ask your GP.
- How much fish can I eat while pregnant?
- Most fish and seafood are safe at 2 to 3 servings a week. The exceptions are higher-mercury species: limit billfish and shark to one 150g serve per fortnight, and orange roughy or catfish to one 150g serve per week, as advised by Better Health Channel.
- Is soft-serve ice cream safe during pregnancy?
- No, soft-serve ice cream is on the listeria-risk list because of how the machines are cleaned and stored. Regular scooped or packaged ice cream is not included in this warning and is considered safe.
- Do I need to avoid all alcohol during pregnancy?
- Yes. There is no known safe level of alcohol during pregnancy, so the safest choice is to avoid it entirely from the point you’re trying to conceive through to birth.
- What should I do if I think I’ve eaten a listeria risk food?
- Try not to panic, as the actual risk from a single meal is low. Keep an eye out for flu-like symptoms over the following days and contact your GP or midwife straight away if you feel unwell, so they can advise you properly rather than relying on general information like this.
Conclusion
Knowing the foods to avoid for pregnancy doesn’t need to turn every meal into a research project. Once you’ve got the core list down, being safe becomes second nature rather than a source of stress. Keep this checklist handy through all three trimesters, lean on your GP or midwife whenever something feels uncertain, and enjoy the parts of pregnancy that have nothing to do with what’s on your plate. When bub finally arrives, this list gives way to a whole new set of adjustments, so it’s worth a look at what to expect in the fourth trimester well before your due date.
This article is intended as general information, not medical advice. Guidance is based on publicly available Australian health resources and may change over time, so always check current advice with your GP or midwife.
