Cribsheet: A Data-Driven Guide to Better, More Relaxed Parenting, from Birth to Preschool (The ParentData Book 2)

by Emily Oster

there is some sensibility behind the idea of waiting between food introductions. Nearly all allergies are caused by one of a few foods—milk, eggs, peanuts, and tree nuts—and it’s sensible not to introduce these foods all at the same time.