nu ‧ tri ‧ ge ‧ no ‧ mics /ˌnjuːtrɪdʒiːˈnəʊmɪks $ ˌnuːtrɪdʒiːˈnɑː-/ BrE AmE noun [uncountable]
the study of how different foods affect someone’s health by the way they react with that person’s ↑ gene s , for example by making them more or less likely to get heart disease or other illnesses