title: Response to a letter to the editor.
authors.affiliation: Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland, New Zealand.
authors.forename: Rebecca F
authors.initials: RF
authors.lastname: Slykerman
authors.affiliation: Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland, New Zealand.
authors.forename: John
authors.initials: J
authors.lastname: Thompson
authors.affiliation: School of Psychology, University of Auckland, Auckland, New Zealand.
authors.forename: Karen E
authors.initials: KE
authors.lastname: Waldie
authors.affiliation: Department of Medicine, University of Auckland, Auckland, New Zealand.
authors.forename: Rinki
authors.initials: R
authors.lastname: Murphy
authors.affiliation: Department of Nutrition, University of Auckland, Auckland, New Zealand.
authors.forename: Clare
authors.initials: C
authors.lastname: Wall
authors.affiliation: Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland, New Zealand.
authors.forename: Edwin A
authors.initials: EA
authors.lastname: Mitchell