Prawns in pregnancy: allowed cooked and hot, the rules
The short answer
Yes, you can eat prawns when pregnant, as long as they are cooked right through and served hot. Manger Bouger advises against “peeled cooked shellfish” during pregnancy, that is, peeled prawns from the chilled aisle, eaten cold in a salad or a cocktail. The risk is listeriosis: Listeria can contaminate prawns after cooking, during peeling, and multiply in the cold. Raw prawns cooked at home, or cooked prawns reheated until piping hot in a stir-fry, a wok dish or a paella, do not pose this problem.
These guidelines follow the official French recommendations. If in doubt, your midwife or doctor can advise you.
Why are peeled cooked prawns not recommended?
Prawns sold peeled and cooked are cooked, then handled to be peeled, packed and kept in the fridge. Every step after cooking is an opportunity for contamination, and Listeria monocytogenes has the particular feature of continuing to multiply in the cold. Eaten as they are, with no further cooking, they therefore carry a risk that the authorities consider sufficient to advise pregnant women against them. Freezing does not destroy the bacterium: frozen cooked prawns, defrosted then eaten cold, carry the same risk.
Listeriosis is rare, fewer than fifty cases a year in pregnant women in France according to Santé publique France, but serious: the bacterium can cross the placenta and cause a miscarriage, premature birth or an infection in the newborn. Cooking destroys it.
What prawn recalls show
The public RappelConso database lists 109 recall notices for prawn-based products between 2021 and September 2026. Their breakdown is revealing:
| Reason for recall | Notices | Products concerned |
|---|---|---|
| Listeria monocytogenes | 63 | 40 batches of whole cooked prawns (brown shrimp, pink or tropical); 8 of peeled cooked prawns; 15 ready meals, salads and platters |
| Vibrio, seafood bacteria | 18 | mostly raw or frozen prawns, no risk once thoroughly cooked |
| Salmonella | 4 | various products, including chilled cooked prawns |
| Allergens, sulphites, other | 24 | various |
Recalls for Listeria have become more frequent recently: 19 notices in 2025, and already 29 between January and September 2026. A recall does not mean that people have fallen ill, but it shows that these products can be contaminated.
Whole cooked prawns: caution is advisable here too
Manger Bouger specifically names “peeled cooked shellfish”. Whole prawns sold cooked are not named. Yet in the Listeria recalls, it is precisely whole chilled cooked prawns that dominate, with 40 notices out of 63, far more than peeled prawns. Cooked, then cooled, handled and kept cold, they have the same profile as other ready-to-eat seafood.
Our advice, as a precaution: during pregnancy, treat shop-bought whole cooked prawns like peeled ones. Reheat them until piping hot in a hot dish, or buy raw prawns to cook yourself and eat straight away.
The traffic-light guide to prawns and seafood
| Form | Pregnant | Why |
|---|---|---|
| Peeled cooked prawns, cold: salad, prawn cocktail, avocado and prawns | 🔴 avoid | peeled cooked shellfish |
| Frozen cooked prawns, defrosted and eaten cold | 🔴 avoid | freezing does not destroy Listeria |
| Raw prawns: ceviche, sushi, tartare | 🔴 avoid | raw seafood |
| Raw shellfish: oysters, raw mussels, clams | 🔴 avoid | raw shellfish not recommended |
| Raw prawns cooked at home until pink and opaque | 🟢 allowed | cooked through |
| Cooked prawns reheated in a hot dish: stir-fry, wok, curry, paella | 🟢 allowed | heated until piping hot |
| Whole prawns sold cooked, eaten cold | 🟠 with conditions | not named specifically, but 40 of the 63 Listeria recalls since 2021: as a precaution, reheat them or choose raw prawns |
| Moules marinières, shellfish cooked until they open | 🟢 allowed | cooked through |
What prawns provide
| 100 g of | Calories | Protein | Iodine | Vitamin B12 | Salt |
|---|---|---|---|---|---|
| Cooked farmed prawns | 100 kcal | 22.5 g | 19 µg | 2.7 µg | 1.66 g |
| Cooked brown shrimp | 89 kcal | 19.4 g | 260 µg | 12.6 µg | 1.47 g |
| Cooked pink tropical prawns | 117 kcal | 26.6 g | 41 µg | 2.5 µg | 0.34 g |
Prawns are high in protein and low in fat. Brown shrimp are a remarkable source of iodine, 260 µg per 100 g, more than the adequate intake of 200 µg a day set by EFSA during pregnancy, and of vitamin B12. Iodine is essential for the development of the baby’s brain and thyroid. Prawns are not among the seafood to limit because of mercury. See our guides to foods high in iodine and foods high in vitamin B12.
The festive seafood platter
Prawns, oysters, whelks, langoustines: the seafood platter brings together almost everything that raises questions during pregnancy. Here is how to put one together:
| Item on the platter | Pregnant | Why |
|---|---|---|
| Raw oysters, clams, sea urchins | 🔴 avoid | raw shellfish |
| Shop-bought peeled cooked prawns, cold | 🔴 avoid | peeled cooked shellfish |
| Whole prawns, whelks, winkles, crab sold cooked, cold | 🟠 as a precaution, avoid cold | seafood cooked then kept cold; many Listeria recalls for whole prawns |
| Langoustines, prawns or lobster cooked at home and served hot | 🟢 allowed | cooked through, eaten straight away |
| Hot oysters, gratinated or poached until fully cooked | 🟢 allowed | cooked shellfish |
| Mussels or cockles cooked until they open | 🟢 allowed | cooked through |
| Home-made mayonnaise | 🔴 avoid | raw eggs |
| Smoked salmon from the platter | 🔴 avoid | smoked fish |
For the festive season, a hot version of the platter works very well: pan-fried langoustines or king prawns, moules marinières, gratinated oysters, seared scallops. For the rest of the menu, see our guide on foie gras in pregnancy, which goes through a festive meal course by course.
Cooking raw prawns thoroughly
- Defrosting: Ameli advises defrosting in the fridge, not on the worktop. You can also cook raw prawns straight from frozen, extending the cooking time slightly.
- Cooking: prawns are cooked when they are pink and opaque right through to the centre. Anses recommends more than 70°C at the core for hot dishes.
- Hygiene: keep raw prawns apart from ready-to-eat foods, and wash the board, knife and hands after handling them: the Vibrio recalls mostly concerned raw prawns.
- Leftovers: three days at most in the fridge, reheated until piping hot.
How much and how often
There is no limit specific to prawns. They count as seafood, which Manger Bouger recommends twice a week during pregnancy, including one oily fish. A portion of 100 to 150 g, in a hot dish, is a good guide. Watch the salt: shop-bought cooked prawns contain 1.5 to 2 g per 100 g. See our guide on how much fish a week.
Prawns, allergies and sulphites
Does eating prawns while pregnant make the baby allergic?
No, and avoiding prawns would not protect the baby either. The European allergy guidelines from EAACI, updated in 2020, explicitly advise against avoiding allergenic foods during pregnancy or breastfeeding in order to prevent food allergy in the child: this strategy has not been shown to work. If you are not allergic yourself, you can therefore eat well-cooked prawns, like other seafood.
If you are allergic to shellfish
Crustaceans are among the 14 allergens that European regulations require to be flagged on labels and in restaurants. A known allergy does not go away during pregnancy: you need to keep avoiding them, including in dishes where they hide, bisques, sauce bases, prawn crackers, Asian sauces, and tell the restaurant.
Sulphites in prawns
Sulphites are sometimes used on raw prawns to stop them blackening. They are also among the allergens that must be declared above 10 mg per kilo. In the RappelConso database, 4 prawn recalls since 2021 concerned undeclared sulphites. If you are sensitive to sulphites, particularly if you have asthma, read the label on raw and frozen prawns carefully.
Langoustines, crab, lobster: the other crustaceans compared
The official rule does not target prawns alone. In its guide « De la grossesse à l’arrivée de bébé », Santé publique France also cites brown crab meat and crab claws: for all crustaceans, it is best to buy them raw, cook them thoroughly at home, and avoid those sold peeled and cooked. On the plate, they are almost all equal for protein, but not for iodine or vitamin B12:
| 100 g of | Calories | Protein | Iodine | Vitamin B12 | Salt |
|---|---|---|---|---|---|
| Langoustine, boiled | 93 kcal | 20.9 g | 394 µg | 3.4 µg | 0.67 g |
| Lobster, boiled | 91 kcal | 19.6 g | 120 µg | 1.6 µg | 0.90 g |
| Crab or brown crab, boiled | 124 kcal | 19.5 g | 100 µg | 6.8 µg | 1.23 g |
| Spiny lobster, boiled | 106 kcal | 21.8 g | 65 µg | 4.0 µg | 0.46 g |
| Crayfish, cooked | 74 kcal | 16.3 g | less than 20 µg | 4.9 µg | 0.21 g |
| Tinned crab, drained | 98 kcal | 18.1 g | 60 µg | 13.5 µg | 1.64 g |
Langoustine stands out: 100 g alone covers nearly double the 200 µg of iodine a day set by EFSA for pregnancy. Tinned crab is a practical option: it is sterilised in its can, and Santé publique France ranks tinned seafood among the good sources of iodine. Once the can is open, keep it in the fridge and finish it quickly.
Spring rolls, dumplings, crackers: the prawns hidden in dishes
Prawns slip into many ready-to-eat products. What matters is not their presence, but how the dish is served: piping hot, it is safe; cold and prepared in advance with cooked prawns, it calls for caution.
| Product, per 100 g | Calories | Protein | Salt | Pregnant |
|---|---|---|---|---|
| Steamed Chinese prawn dumpling | 172 kcal | 5.5 g | 0.96 g | 🟢 served piping hot |
| Prawn or crab spring roll (nem) | 213 kcal | 7.4 g | 1.2 g | 🟢 reheated right through |
| Stir-fried noodles with prawns | 104 kcal | 4.9 g | 0.84 g | 🟢 reheated until piping hot |
| Prawn skewer | 140 kcal | 16.4 g | 1.92 g | 🟢 grilled and eaten hot |
| Prawn fritter | 260 kcal | 6.5 g | 1.9 g | 🟢 fried and served hot |
| Prawn crackers | 508 kcal | 3.1 g | 1.53 g | dry product, not covered by the recommendations |
In most of these dishes, there are few prawns. On the packets of prawn crackers whose composition is detailed on Open Food Facts, the stated share of prawns ranges from 7 to 17%: the rest is mostly cassava or tapioca starch and oil. Two other packets flag sulphites in the cassava flour, worth knowing if you are sensitive to them. And at 508 kcal per 100 g, these are crisps before they are seafood.
At an Asian restaurant: what is hot, what is cold
Vietnamese, Thai or Japanese menus mix piping-hot dishes and cold preparations with cooked prawns. The guideline is the same everywhere: what comes out of the wok, the steamer basket or the fryer is safe; what has been assembled cold with already-cooked prawns is not.
- To avoid: summer rolls (fresh spring rolls), which combine peeled cooked prawns served cold with raw vegetables; prawn nigiri, or ebi, where the cooked prawn is served cold on rice; cold prawn salads.
- Possible: steamed dumplings served piping hot, fried spring rolls, fritters and tempura, pad thai, fried rice or prawn curry, tom yum soup.
For raw vegetables, Ameli and Santé publique France advise not eating them away from home when you do not know how they were washed. For sushi in general, see our guide on sushi in pregnancy.
The site’s prawn recipes, put to the test
| Recipe | Pregnant | Why |
|---|---|---|
| Tom yum prawn soup | 🟢 as it is | the prawns cook for 3 minutes in the simmering broth |
| Prawn and vegetable wok | 🟢 as it is | prawns seared over high heat, served hot |
| Prawn fried rice | 🟢 as it is | prawns and scrambled eggs cooked in the wok |
| King prawns with garlic and chilli | 🟢 as it is | seared for 3 minutes on each side, served straight away |
| Prawn and quinoa bowl | 🟢 eat it hot | prawns seared; avoid keeping the bowl for the next day and eating it cold |
| Prawn summer rolls | 🟠 to adapt | 250 g of cooked prawns served cold: cook raw prawns just beforehand, let them cool slightly and roll straight away, with washed raw vegetables |
| Avocado, prawn and grapefruit salad | 🟠 to adapt | same logic: no shop-bought peeled prawns, but raw prawns pan-fried and served warm |
Safe recipe ideas
- Garlic and lemon sautéed prawns, cooked until pink and opaque.
- Chicken and prawn paella.
- Seafood risotto, served hot.
- Moules marinières, cooked until fully open.
For other seafood, see our guides on surimi in pregnancy, smoked salmon in pregnancy and taramasalata in pregnancy.
And while breastfeeding?
While breastfeeding, the listeriosis precautions specific to pregnancy no longer apply: cold peeled prawns become possible again. See our guide on eating while breastfeeding.
Frequently asked questions
Can you eat prawns when pregnant?
Yes, cooked right through and served hot. Peeled prawns sold cooked, eaten cold, are not recommended.
Are cooked prawns from the chilled aisle allowed?
Cold, no, if they are peeled: Manger Bouger advises against them. Reheated until piping hot in a hot dish, yes.
Can you eat prawn and avocado when pregnant?
Not with shop-bought peeled prawns eaten cold. With raw prawns cooked at home and eaten straight away, the risk is much lower.
Do prawns contain mercury?
They are not among the seafood that Manger Bouger advises limiting because of mercury during pregnancy.
Can you eat oysters when pregnant?
Raw, no: raw shellfish are not recommended. Cooked, yes.
Are whole cooked prawns allowed in pregnancy?
They are not named specifically, but they account for 40 of the 63 prawn recalls for Listeria since 2021. As a precaution, reheat them until piping hot, or choose raw prawns to cook.
Are whelks allowed in pregnancy?
Sold cooked and eaten cold, they fall under the same logic as crustaceans sold cooked: as a precaution, it is best to avoid them, or to reheat them in a hot dish.
Can you eat cooked oysters when pregnant?
Yes, if they are fully cooked, gratinated or poached. Raw, they are not recommended.
How can you tell if a prawn is properly cooked?
It should be pink and opaque right through to the centre, and piping hot if reheated.
Can you eat crab when pregnant?
Yes, cooked at home and eaten hot, or tinned. Santé publique France advises avoiding brown crab meat and crab claws sold peeled and cooked, from the chilled aisle.
Are langoustines allowed in pregnancy?
Yes, well cooked and served hot. They are very rich in iodine: 394 µg per 100 g according to Ciqual.
Can you eat summer rolls when pregnant?
Not at a restaurant: they combine cooked prawns served cold with raw vegetables whose washing you cannot vouch for. At home, with raw prawns cooked just beforehand and well-washed raw vegetables, it is possible.
Are prawn spring rolls (nems) allowed in pregnancy?
Yes, if they are served or reheated until piping hot right through.
Can you eat it in pregnancy? The series
Food by food, what is allowed, allowed with conditions or best avoided during pregnancy: cheesecake in pregnancy, foie gras in pregnancy, feta in pregnancy, mozzarella in pregnancy, raclette in pregnancy, surimi in pregnancy, cured meats in pregnancy, smoked salmon in pregnancy, tiramisu in pregnancy, chorizo in pregnancy, taramasalata in pregnancy, honey in pregnancy, camembert and brie in pregnancy, soft-boiled eggs in pregnancy, sushi in pregnancy, cured ham in pregnancy, hummus in pregnancy, tinned tuna in pregnancy.
Our sources
- Manger Bouger (Santé publique France), « Quels aliments éviter et quelles précautions prendre quand on est enceinte ? », updated 2026: “peeled cooked shellfish”.
- Ameli, « Les aliments à éviter et les précautions d’hygiène pendant la grossesse ».
- Santé publique France, listeriosis surveillance data; EFSA, reference values for iodine.
- Ciqual 2025 table (Anses): cooked prawns.
- RappelConso, public product recall dataset (data.economie.gouv.fr), prawn-based products, 2021 to September 2026.
- Ameli, « Les aliments à éviter et les précautions d’hygiène pendant la grossesse », updated 19 June 2026: defrosting in the fridge, keeping raw and cooked foods separate.
- Anses, « Qu’est-ce que la listériose et comment s’en prémunir ? »: reheating to above 70°C.
- Halken S et al. EAACI guideline: preventing the development of food allergy in infants and young children, 2020 update. Pediatr Allergy Immunol, 2021 (PMID 33710678).
- Regulation (EU) No 1169/2011, Annex II: substances causing allergies or intolerances, including crustaceans and sulphites above 10 mg/kg.
- Santé publique France, guide « De la grossesse à l’arrivée de bébé » (Manger Bouger, ref. DT05-535-26B): crustaceans, including brown crab meat and crab claws, to be bought raw and cooked thoroughly; tinned seafood as sources of iodine; raw vegetables away from home.
- Ciqual 2025 table (Anses): langoustine, lobster, crab, spiny lobster, crayfish, tinned crab; steamed prawn dumpling, spring roll, noodles with prawns, prawn skewer and fritter, prawn crackers.
- Open Food Facts, ingredient lists of prawn crackers sold in France, collected on 26 September 2026.
