Can You Drink Kefir When Pregnant?
Written by Jordan Morley · Reviewed against NHS foods-to-avoid guidance · Last updated 28 October 2026
Kefir made from pasteurised milk (which includes most supermarket kefir) is generally fine in pregnancy; avoid raw-milk or homemade kefir.
Why is kefir a concern in pregnancy?
The pregnancy concern with fermented drinks is unpasteurised ingredients. Supermarket kefir in the UK is made from pasteurised milk and is generally considered fine to drink while pregnant. Kefir made from raw (unpasteurised) milk, and homemade kefir where hygiene is harder to guarantee, is best avoided because of the listeria risk in unpasteurised dairy.
You can also check the calorie content of kefir alongside its safety information. Also check medication safety during pregnancy if you're managing any conditions.
The exception
Check the label — 'made with pasteurised milk' is what you want to see.
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Kefir: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| While breastfeeding | Safe |
Common questions
Can I eat kefir in the first trimester?
Yes — the advice to avoid Kefir applies throughout pregnancy.
Is a small amount of kefir OK during pregnancy?
The NHS advises avoiding Kefir entirely during pregnancy rather than limiting it.
I accidentally ate kefir while pregnant — what should I do?
The risk from a single serving is low. Watch for stomach upset or flu-like symptoms over the following days and weeks, and contact your midwife or GP if you feel unwell.
Is cooked kefir safe in pregnancy?
Yes — boiling or thoroughly heating Kefir kills the bacteria of concern, making it safe.
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.