An anthropologist by training, Lisa Lewis was a member of Princeton University's computing center staff for a number of years. Her interest in autism began in 1991, when her son was diagnosed with Pervasive Developmental Disorder - Not Otherwise Specified (PDDNOS). In 1993, she became interested in dietary interventions, and she wrote the first edition of Special Diets for Special Kids in 2011.

From 1999-2010 Lisa and co-founder Karyn Seroussi ran ANDI, the Autism Network for Dietary Intervention. ANDI provided support and information to parents around the world who wanted to use dietary intervention, at a time when there was little such help available. Their research on dietary intervention began with the effort to help their own children, and led to the formation of ANDI and the publication of a quarterly newsletter. The ANDI News had thousands of subscribers and ultimately led to their collaboration on The Encyclopedia of Dietary Intervention.

Now retired empty nesters, Lisa and her husband, Serge Goldstein, live in New Jersey with their dog, Murphy. They travel extensively and pursue many hobbies. Sam, now 34, lives in a nearby group home with three other young men, and is a regular and constant presence in their lives.