Can You Eat Crayfish When Pregnant?
Written by Jordan Morley · Reviewed against NHS foods-to-avoid guidance · Last updated 28 October 2026
Yes — thoroughly cooked Crayfish are safe to eat during pregnancy. Avoid them raw.
Why is crayfish safe in pregnancy?
Cooked Crayfish are safe during pregnancy and a good source of protein and minerals. The caution applies to raw or undercooked shellfish, which can contain harmful bacteria, viruses or toxins that could cause food poisoning. The NHS says cooked shellfish is safe, so Crayfish that are piping hot all the way through are fine.
You can also check the calorie content of crayfish alongside its safety information. Also check medication safety during pregnancy if you're managing any conditions.
The exception
Avoid raw Crayfish during pregnancy. Cold pre-cooked Crayfish (for example from a deli counter) are also best avoided unless you reheat them until piping hot.
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Pregnancy essentials
Pregnancy food guide
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Baby-safe food thermometer
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Check Price →Common questions
Can I eat crayfish in the first trimester?
Yes — thoroughly cooked Crayfish are safe throughout pregnancy, including the first trimester.
Is a small amount of crayfish OK during pregnancy?
There is no limit on cooked Crayfish during pregnancy.
I accidentally ate crayfish 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 crayfish safe in pregnancy?
Yes — cooked is exactly how the NHS says to enjoy Crayfish 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.