Can You Eat Kefir When Pregnant?
Reviewed against NHS foods-to-avoid guidance · Updated September 2026
Nutritional data sourced from USDA FoodData Central and Public Health England. Always consult a registered dietitian for personal dietary advice.
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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Pregnancy essentials
Pregnancy multivitamin
The NHS advises 400µg of folic acid daily — easiest as one daily tablet.
Check Price →Pregnancy food guide
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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.
The information on 247foodcheck.com is compiled from official public guidance (NHS, Food Standards Agency, USDA/FDA FoodKeeper) and is provided for general information only. It is not medical advice and does not replace guidance from your midwife, GP, health visitor or other qualified professional. When in doubt, throw it out — and if you feel unwell after eating something, contact NHS 111 or your doctor.