Can You Eat Smoked Mackerel When Pregnant?
Written by Jordan Morley · Reviewed against NHS foods-to-avoid guidance · Last updated 28 October 2026
Hot-smoked mackerel that's thoroughly cooked/reheated until piping hot is fine in pregnancy; eaten cold from the packet it's best avoided due to the listeria risk in smoked fish.
Why is smoked mackerel a concern in pregnancy?
NHS and FSA guidance advises pregnant women to avoid smoked fish unless it is thoroughly cooked, because smoked fish has been linked to listeria. Smoked mackerel is hot-smoked, but eaten cold straight from the packet it still falls under this advice — cooking it until piping hot (for example in a fishcake, pasta or under the grill) makes it safe. Count it towards your 2 oily fish portions a week.
You can also check the calorie content of smoked mackerel alongside its safety information. Also check medication safety during pregnancy if you're managing any conditions.
The exception
Smoked Mackerel is safe if thoroughly cooked until piping hot all the way through — for example in a cooked pasta bake, tart or fishcake.
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Check Price →Smoked Mackerel: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| While breastfeeding | Safe — max 2 portions a week |
Common questions
Can I eat smoked mackerel in the first trimester?
The advice to avoid uncooked smoked mackerel applies throughout pregnancy, including the first trimester.
Is a small amount of smoked mackerel OK during pregnancy?
The NHS advises avoiding uncooked smoked mackerel entirely during pregnancy rather than limiting it.
I accidentally ate smoked mackerel while pregnant — what should I do?
The risk from a single portion is low, so try not to worry. Keep an eye out for flu-like symptoms over the next few weeks and speak to your midwife or GP if you feel unwell.
Is cooked smoked mackerel safe in pregnancy?
Yes — smoked mackerel that has been thoroughly cooked until piping hot is safe to eat during pregnancy.
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.