noun🔗ShareFenilalaninaAn essential amino acid C9H11NO2 found in most animal proteins; it is essential for growth; the inability to metabolize it leads to phenylketonuria; it is a constituent of aspartame."Example sentence: "People with phenylketonuria (PKU) must carefully limit their intake of phenylalanine from foods like meat and dairy to prevent health problems." "Las personas con fenilcetonuria (PKU) deben limitar cuidadosamente su ingesta de fenilalanina de alimentos como carne y lácteos para prevenir problemas de salud.biochemistrymedicinechemistrybiologysubstancecompoundphysiologyfoodChat with AIVocabulary GamePractice Reading