Allergen note
Kefir is fermented milk, usually cow's milk (sometimes goat's or sheep's), so it contains milk, one of the most common food allergens. When you offer it after 12 months, start with a few sips and watch for hives, vomiting or swelling. Children with a known milk allergy should not have it unless their allergist says otherwise.
How to serve
From 12 months, offer plain kefir in an open or straw cup, pour it over cereal, or blend it with fruit into a smoothie. It waits until then because, as a milk drink, it shouldn't replace breast milk or formula, and many brands are sweetened. Keep to about 1/2 cup (120 ml4 fl oz) a day, counted in your toddler's total milk.
Preparation
Choose plain, unsweetened kefir made from pasteurized whole milk; flavored kefirs often contain a lot of added sugar, which is best avoided before age 2. Serve it cold, straight from the fridge, since heating destroys its live cultures. If you make kefir at home, use pasteurized milk and strain out all the grains.
Texture and choking risk
Kefir is a thin drink, so the main concern is gulping too much at once. Offer small amounts in an open cup while your child sits upright and let them take small sips. Strain homemade kefir well so no rubbery kefir grains remain, and keep smoothies smooth, with no whole seeds and no whole or chopped nuts before 5 years.
Sources: cdc.gov · cdc.gov · healthychildren.org · healthychildren.org · nhs.uk · nhs.uk
Starting ages are typical guidance for healthy, full-term babies who show signs of readiness. Your paediatrician may advise differently, especially where there is a family history of allergy.
Track first tastes and reactions
Log when your child first tries kefir, note any reaction and see it in the allergen tracker.
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