Can You Eat Raw Shellfish When Pregnant?
Written by Jordan Morley · Reviewed against NHS foods-to-avoid guidance · Last updated 28 October 2026
No — the NHS advises avoiding raw shellfish during pregnancy because it can cause food poisoning from bacteria, viruses or toxins.
Why is raw shellfish a concern in pregnancy?
Raw shellfish — oysters, raw clams, raw mussels — can contain harmful bacteria, viruses and toxins that cooking would normally destroy. Food poisoning in pregnancy is more unpleasant and carries more risk for you, so the NHS says to eat shellfish only when thoroughly cooked.
You can also check the calorie content of raw shellfish alongside its safety information. Also check medication safety during pregnancy if you're managing any conditions.
The exception
All of these shellfish are safe once thoroughly cooked and served piping hot. That is why raw oysters, clams or scallops on a sushi menu are a skip in pregnancy. See our sushi guide for an order-by-order breakdown.
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Pregnancy essentials
Pregnancy food guide
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Check Price →Raw Shellfish: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| While breastfeeding | Safe |
Common questions
Can I eat raw shellfish in the first trimester?
Yes — thoroughly cooked raw shellfish are safe throughout pregnancy, including the first trimester.
Is a small amount of raw shellfish OK during pregnancy?
There is no limit on cooked raw shellfish during pregnancy.
I accidentally ate raw shellfish while pregnant — what should I do?
If they were cooked, there is nothing to worry about. If you ate them raw, the main risk is ordinary food poisoning — contact your GP or midwife if you develop sickness or diarrhoea, mainly so you can stay hydrated and be checked over.
Is cooked raw shellfish safe in pregnancy?
Yes — cooked is exactly how the NHS says to enjoy raw shellfish while pregnant.
Related answers
Primary source: NHS foods-to-avoid guidance.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.