Ultra-Processed Foods and Kids’ Behavior: What the New JAMA Study Means for Your Family

A new JAMA study followed over 2,000 preschoolers and found that higher ultra-processed food intake at age three predicted worse behavior at age five: more anxiety, withdrawal, aggression, and hyperactivity. At age three, UPFs already made up 45.5% of these kids’ daily calories.

The good news: researchers modeled what happens when you swap just 10% of UPF calories for real food, and behavior scores improved across every domain. Small and intentional beats dramatic and unsustainable.

In this episode, I walk through two quick rules of thumb for spotting a UPF, why “organic” and added-vitamin labels give parents a false sense of security, and how to actually reduce UPFs at home using the authoritative approach.

Study: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2845768Later this month, I’m launching the Authoritative Approach Study Group: a daily text message with one small parenting nugget, plus a weekly Zoom call for live coaching, cases, and Q&A. No course logins, no homework piling up. One registration covers two adults, so both parents (or you and a co-caregiver) can learn together and stay on the same page. Seats are super limited.

Authoritative Approach Study Group