Wiktionary
nutrigenetics
n. A branch of nutritional genomics which aims to identify genetic susceptibility to diseases and genetic variation in the effects of nutrient intake on the genome.
Wikipedia
Nutrigenetics
Nutrigenetics aims to identify how genetic variation affects response to nutrients. This knowledge can be applied to optimise health, and prevent or treat diseases. The ultimate aim of nutrigenetics is to offer people personalized nutrition based on their genetic makeup.