When is a good time to introduce your baby to solid foods? While the AAP recommends a breastmilk diet for the first 6 months, I always wait for signs of developmental readiness before introducing any solids or purees. Now that our second child is over 4 months and can sit up in the high chair (or in our laps assisted!), we have begun getting the “when are you gonna feed her solids” question. Read on for the whats, whens, whys, and hows that worked for us.