(familial disorder where krypto-pyrroles bind with B6 and zinc, thus depleting them)

Liquid vitamin B6 and zinc may be advisable.  Even increasing B6 and zinc supplementation may help.
Solving the Mystery of ADHD Naturally by Linda Santini     Pyroluria was one of the issues that Eric, Linda's son, had.  Spring 2005  Nutrition & Mental Health newsletter