Hi there, I Followed my PKU diet to a tee when having my daughter. She is a carrier,but does not have pku,however she does have ADHD.We honestly could not tell till she started grade school,and report cards came,and Parent teacher conferences.
She is NOT medicated.Her dad,and i taught her how to recongnise her own outbursts. I think it will just depend on your daughter as she ages.
She is like every other child just alot more outgoing,and from what her teacher says A VERY HAPPY CHILD!