Personalized Coaching Want extra support or a customized diet plan to suit your unique needs? Book a one-on-one 30- or 45-minute telephone consultation with Serotonin Power Diet Founders, Judith J. Wurtman, PhD, or Nina T. Frusztajer, MD. Discounted packages available. Book a one-on-one phone coaching session Book a Coaching Session Select “single sessions” or “multi-session packages” below! ***Note: You must have a copy of The Serotonin Power Diet book prior to your session.