More than 2,000 years ago, Hippocrates wrote: "Leave your drugs in the chemist's pot if you can heal the patient with food." Scientists may finally be catching up with the Father of Medicine. One of the newest fields of nutrition science, known as nutritional genomics, is dedicated to understanding the interaction between diet and the genome. The goal is to use food to prevent disease by identifying genetic predispositions for chronic conditions that can be mitigated by the proper dietary intake. Researchers in the field warn that they need to collect much more evidence before nutrigenomic, or nutrigenetic, dieting becomes a reality.