Nutrigenomics- or 'nutritional genomics'- is the study of all the genetic factors that influence the biological response to diet and the impact diet has on gene expression. Nutrigenomics is a branch of a broader domain-ecogenomics, which deals with the role of genetic polymorphisms in the variability of organisms' response to environmental factors. Nutrigenomics is a powerful tool that guides investigators through a more global and molecular consideration of various factors influencing the human biological response to diet. Nutrigenetics on the other hand, aims to understand how the genetic...