title: Personalised nutrition: the role of new dietary assessment methods.
abstract: Food records or diaries, dietary recalls and FFQ are methods traditionally used to measure dietary intake; however, advancing technologies and growing awareness in personalised health have heightened interest in the application of new technologies to assess dietary intake. Dietary intake data can be used in epidemiology, dietary interventions and in the delivery of personalised nutrition advice. Compared with traditional dietary assessment methods, new technologies have many advantages, including their ability to automatically process data and provide personalised dietary feedback advice. This review examines the new technologies presently under development for the assessment of dietary intakes, and their utilisation and efficacy for personalising dietary advice. New technology-based methods of dietary assessment can broadly be categorised into three key areas: online (web-based) methods, mobile methods and sensor technologies. Several studies have demonstrated that utilising new technologies to provide tailored advice can result in positive dietary changes and have a significant impact on selected nutrient and food group intakes. However, comparison across studies indicates that the magnitude of change is variable and may be influenced by several factors, including the frequency and type of feedback provided. Future work should establish the most effective combinations of these factors in facilitating dietary changes across different population groups.
authors.affiliation: UCD Institute of Food and Health,University College Dublin,Belfield,Dublin 4,Republic of Ireland.
authors.forename: Hannah
authors.identifier: http://orcid.org/0000-0001-5944-8027
authors.initials: H
authors.lastname: Forster
authors.affiliation: UCD Institute of Food and Health,University College Dublin,Belfield,Dublin 4,Republic of Ireland.
authors.forename: Marianne C
authors.identifier: http://orcid.org/0000-0002-6651-2434
authors.initials: MC
authors.lastname: Walsh
authors.affiliation: UCD Institute of Food and Health,University College Dublin,Belfield,Dublin 4,Republic of Ireland.
authors.forename: Michael J
authors.identifier: http://orcid.org/0000-0001-5250-361X
authors.initials: MJ
authors.lastname: Gibney
authors.affiliation: UCD Institute of Food and Health,University College Dublin,Belfield,Dublin 4,Republic of Ireland.
authors.forename: Lorraine
authors.identifier: http://orcid.org/0000-0002-7711-7499
authors.initials: L
authors.lastname: Brennan
authors.affiliation: UCD Institute of Food and Health,University College Dublin,Belfield,Dublin 4,Republic of Ireland.
authors.forename: Eileen R
authors.identifier: http://orcid.org/0000-0001-9465-052X
authors.initials: ER
authors.lastname: Gibney
keywords:  FFQ;  PDA personal digital assistant;  app application; Diet; Dietary assessment; Dietary feedback; Food habits; Personalised nutrition