It is a genetic disease where people can't process phenylanine. Good luck finding products free of it, it is everywhere. Look up a PKU diet and it will give you foods that are free or very low in it.
I started DD2 on heinz because DD1 was on it...but it didnt fill her so she is now on s26gold and she has no problems with constipation, she has reflux so she spews anyways. Heinz smells much better than s26
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