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When and how should I start my baby on solid foods?

Last updated on April 10, 2026

The data supports introducing solid foods around 4–6 months, with the key milestone being readiness signs rather than a rigid age. Early introduction of common allergens — including peanuts, eggs, and dairy — is now recommended based on strong trial evidence, reversing decades of previous guidance to delay these foods.

Evidence Summary

  • Data source: Multiple RCTs including the landmark LEAP trial on early allergen introduction; AAP and WHO guidance

  • Key finding: Early peanut introduction (starting around 4–6 months) reduces peanut allergy risk by up to 80% in high-risk infants (LEAP trial)

  • Key finding: No strong evidence that one feeding method (puree vs. baby-led weaning) produces better outcomes

  • Key finding: Iron-rich foods are important to prioritize early, as breast milk iron decreases after 6 months

  • Caveat: Readiness signs (sitting with support, loss of tongue-thrust reflex) matter more than exact age

Confidence: High confidence on allergen timing — supported by multiple RCTs. Low confidence on feeding method specifics — limited comparative data.

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