Step 1: First tiny taste
Offer a small taste of pasteurized plain kefir. Watch for concerning symptoms such as hives, swelling, vomiting, or breathing trouble, and seek urgent care if those occur.
Kefir
Overview
Kefir is a cow’s-milk product and a priority allergen (milk). Dairy foods without added sugars, such as yogurt, can be part of complementary feeding around 6 months. Drinking cow’s milk is not recommended until after 12 months. Offer pasteurized plain kefir as a single new food. If your baby has severe eczema or a prior immediate food allergy, talk with a clinician before introducing highly allergenic foods.
Preparation
Use pasteurized plain kefir without added sugars. Offer it as a spooned complementary food, not as a bottle drink that replaces breast milk or infant formula. Do not offer unpasteurized kefir. Always supervise eating.
Three-step introduction
Step 2: Larger offer
If the first taste was tolerated, gradually offer a larger amount of the same kefir at a later feed.
Step 3: Include regularly
If tolerated, keep plain kefir in the diet routinely as part of complementary feeding.
FAQ
When are babies usually ready for solid foods?
Complementary foods are typically introduced around 6 months of age, when the baby shows developmental readiness (for example, sitting with support, good head control, and swallowing food rather than pushing it out). Introducing solids before 4 months is not recommended.
Can I give kefir before 12 months?
Yes. Other cow’s milk products such as yogurt without added sugars can be introduced before 12 months as complementary foods. Drinking cow’s milk is not recommended until after 12 months because it does not have the right mix of nutrients for younger infants and can be hard on the kidneys.
What kind of kefir should I offer?
Choose pasteurized kefir without added sugars. Do not give unpasteurized kefir. Flavored kefirs often contain added sugars, which infants should not have.
What if my baby has severe eczema or a prior food allergy?
If your baby has severe, persistent eczema or had an immediate allergic reaction to a food — especially a highly allergenic food — talk with your child’s pediatrician about how and when to introduce highly allergenic complementary foods such as kefir and other dairy.
Sources
- WHO Guideline for complementary feeding of infants and young children 6–23 months of age (2023)
- CDC — When, What, and How to Introduce Solid Foods
- FAO/WHO — Risk assessment of food allergens: Part 1 (Codex priority allergen list)
- FDA — Food Allergies (major food allergens / Big 9)
- AAP HealthyChildren — When to Introduce Egg, Peanut Butter & Other Common Food Allergens
- CDC — Foods and Drinks to Avoid or Limit
- CDC — Infant and Toddler Nutrition FAQs