Thal minor and iron deficiency can coincide, even though they are not related. Slade, the improvement in your child after taking a formula with iron does suggest iron deficiency is or was present. I think that sometimes the problems of getting young minors to eat a good diet does lead to other nutritional deficiencies and iron is among these. It is most important to find nutritious foods that young children will eat. Normally, I would say avoid the iron rich formula as the iron isn't needed in most cases, but when the child begins to thrive after taking the formula, it is obvious that it is needed at this time. It can be very difficult with young children and even teens, but efforts have to be made to find nutritious foods that the child welcomes. So many thal minors do poorly as children and diet is a big factor. Finding nutritious foods a child will accept can take some time, but it is well worth the ongoing effort.