If you don't first consider, then measure for specific hormone imbalances you'll remain unconvinced that hormone fluctuations do often create significant ADHD symptoms.
Is someone trying to fool you with ADHD meds? Is that what you thought when meds didn't work as anticipated, and your ADHD recovery journey unexpectedly changed?
This deep but brief review by Camille F. J. Lieners PhD, Luxembourg, regarding the IgG controversy [Evomed Diagnostics] helps answer many questions about food testing.