Foods to avoid in pregnancy

There’s a list of foods to be careful with in pregnancy, and while it can feel like a minefield at first, the reasoning behind it is simple. Certain foods carry a small risk of bacteria (like listeria and salmonella) or parasites (toxoplasma) that are usually harmless to you but can be serious for your baby, and a few carry too much of things like mercury or vitamin A. Avoiding the higher-risk foods removes a small but real risk, and the rest of the time you can eat normally.

The main foods to avoid or limit in Australia include:

• Soft and mould-ripened cheeses — brie, camembert, ricotta, feta, blue cheese and the like (unless cooked until steaming hot). Hard cheeses and processed cheese are fine.
• Cold deli meats and cold cooked chicken — including ham, salami and sliced chicken, and pre-made sandwiches, sushi and salads that contain them. Freshly cooked, hot meat is fine.
• Pâté and meat spreads.
• Raw or undercooked meat and eggs — cook meat right through, and choose thoroughly cooked eggs rather than runny or raw (so go easy on homemade mayo, mousse and raw cookie dough).
• Raw seafood (sushi, sashimi, oysters), smoked or chilled ready-to-eat seafood, and high-mercury fish — there’s a separate guide to seafood worth reading.
• Unpasteurised (raw) milk and anything made from it.
• Pre-packaged salads, pre-cut fruit and rockmelon that have been sitting around, and raw bean sprouts.
• Liver and liver products, and high-dose vitamin A supplements, because too much vitamin A can harm your baby.

It’s less about never eating these and more about how they’re prepared and stored: listeria is killed by thorough cooking, so foods cooked until steaming hot are generally fine, while ready-to-eat foods that sit around (chilled or at room temperature) are the riskier ones.

Good food hygiene handles a lot of the rest. Wash fruit and vegetables well, keep raw and cooked foods separate, refrigerate leftovers promptly and reheat them until piping hot, don’t eat things past their use-by date, and wash your hands and surfaces after handling raw meat. If you have a cat, avoid handling cat litter (or wear gloves and wash your hands) because of the toxoplasma risk, and wear gloves for gardening.

Two things worth their own mention: alcohol (where the safest choice is none) and caffeine (best limited) each have their own guidance. And this is general advice — the exact lists and reasons are detailed and occasionally updated, so lean on a trusted, current reference rather than memorising everything. Bloom’s Food Safety section gathers the Australian guidance in one place, and FSANZ and healthdirect are the authorities behind it.

It helps to balance the “avoid” list with a reminder of how much is perfectly safe — because pregnancy eating shouldn’t feel like deprivation. Freshly cooked meat, chicken and fish; hard cheeses and pasteurised milk, yoghurt and cream; well-cooked eggs; tinned foods; washed fruit and vegetables; wholegrains, legumes, nuts and seeds; and freshly prepared hot meals are all fine. In other words, the vast majority of a normal, varied diet is exactly what you should be eating.

A little extra care when eating out or on the go covers the trickier situations. Choose freshly cooked, hot dishes over buffets, salad bars, and pre-made sandwiches or sushi that have been sitting in a display. At home, be a bit stricter with leftovers than usual — eat them within a day or two, refrigerate promptly, and reheat until piping hot all the way through, since listeria can grow slowly even in the fridge. When in doubt about how long something’s been sitting out, it’s safest to give it a miss.

A few things people often ask about are actually fine: honey, spicy food, and most herbs and spices are safe (spicy food may give you heartburn, but it won’t hurt your baby). Peanuts and other common allergens are fine unless you’re personally allergic. Most everyday herbal teas (like ginger and peppermint) are okay in normal amounts, though a few are best limited, so check if unsure. If a specific food is worrying you, it’s a great question for your midwife.

It’s also worth knowing the signs of listeriosis, since it’s the infection the food rules are most designed to prevent: it can cause fever, muscle aches, headache, and sometimes nausea or diarrhoea, often a week or few after eating contaminated food. It’s rare, but because it can be serious in pregnancy, see your GP promptly if you feel unwell like this after a higher-risk food — it can be treated with antibiotics. Don’t panic over a one-off slip, but do get checked if you’re genuinely unwell.

Finally, try not to panic if you’ve eaten something on the list before you knew, or by mistake — the risk from any single serving is very low, and worrying won’t help. If you develop a fever, flu-like illness or feel unwell after eating a higher-risk food, mention it to your GP or midwife. Otherwise, cover the basics, use a good reference when you’re unsure, and enjoy the huge range of foods that are perfectly safe.