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Mary Elizabeth Barker

Image of Mary Elizabeth Barker
Email
mary.e.barker@uia.no
Mobile phone
+44 7515 654123

Background and experience

I am a Professor of Psychology and Behavioural Science. I have a joint appointment in both the Faculty of Medicine and the School of Health Sciences, Faculty of Environmental and Life Sciences, University of Southampton UK. I am also an adjunct professor at the University of Agder, Norway, and have honorary appointments at the University of Witwatersrand, South Africa, and University College London. Previously, I was a senior research officer with the Home Office Research and Planning Unit, and research fellow in the Faculty of Law, University of Bristol.

Areas of responsibility

I run a programme of work in both the UK and in low-income countries aiming to engage young people in improving their sense of agency, well-being and mental health, to benefit their health in general but their diets and physical activity habits more specifically. My team’s approach is participatory and combines social activism focused on engaging young people in the climate change and health agenda and testing methods of one-to-one support and digital resources including smartphone games. Much of this work takes place as part of her NIHR Programme Grant for Applied Research EACH-B (Engaging Adolescents in Changing Behaviour). I partner in this activity with the TALENT network of colleagues with interests in adolescent health and well-being based in institutions in low-and-middle-income countries. My team also ran a five-country, longitudinal qualitative study with young people throughout the pandemic exploring their experience, mental health, well-being and resilience, data from which supported UK local and national government COVID messaging to young people.

Teaching

My main research interests are the food choices of young women and the complex of psychological, social and environmental factors that affect them and the food choices they make for their children./ behaviour change approaches to improving diet, nutritional status and body composition in young men and women before, during and after pregnancy.

I co-lead the in-person, educational and digital intervention research of the Southampton NIHR Biomedical Research Centre Behavioural Sciences theme. My team has developed Healthy Conversation Skills. These evidence-based skills enable health and social care workers and teachers to motivate and support behaviour change in their patients, clients and students.

LifeLab is central to my team’s educational behaviour change approach. This state-of-the-art teaching laboratory aims to improve life-long health by engaging teenage school students with the science behind health messages. The £2.4million NIHR-funded EACH-B programme is developing an intervention using LifeLab, Healthy Conversation Skills and gaming to engage teenagers in eating better and being more active.

I am an investigator on behaviour change intervention studies to improve adolescent and maternal health in India, sub-Saharan Africa and Canada and a collaborator on the Canadian Institute for Health’s HeLTI programme of preconception intervention studies in Canada, India, South Africa and China.

Publications

  • Medin, Anine C.; Polspoel, Maaike E. M.; Vejrup, Kristine; Strömmer, Sofia T.; Barker, Mary Elizabeth & Øverby, Nina Cecilie (2025). “I bought it, but I still don’t know what it is”: international students dealing with a new food culture in Norway − A qualitative study. International Journal of Qualitative Studies on Health and Well-being. ISSN 1748-2623. 20(1). doi: 10.1080/17482631.2025.2595849. Full text in Research Archive
  • Lian, Henrik; Øverby, Nina Cecilie; Vik, Frøydis Nordgård; Medin, Anine Christine; Osorio, Natalie Garzon & Helle, Christine [Show all 12 contributors for this article] (2025). Implementation strategies: lessons learned during an e-learning intervention to improve dietary behaviors and feeding practices in early childhood education and care. BMC Nutrition. 11(1). doi: 10.1186/s40795-024-00990-3. Full text in Research Archive
  • Medin, Anine Christine; Vik, Frøydis Nordgård; Helle, Christine; Helland, Sissel Heidi; Wills, Andrew Keith & Osorio, Natalie Garzon [Show all 22 contributors for this article] (2024). Scaling up evidence-based digital early life nutrition interventions in a county setting: an implementation trial – protocol for Phase 2 of the Nutrition Now project. Frontiers in Public Health. 11. doi: 10.3389/fpubh.2023.1326787. Full text in Research Archive
  • Wills, Andrew Keith; Hillesund, Elisabet Rudjord; Lippevelde, Wendy Van; Barker, Mary Elizabeth; Vik, Frøydis Nordgård & Øverby, Nina Cecilie (2024). Preconception diet in adolescence and its association with hypertensive disorders of pregnancy and preterm birth. Results from The HUNT study. British Journal of Nutrition. ISSN 0007-1145. p. 1–8. doi: 10.1017/S0007114524000746. Full text in Research Archive
  • Osorio, Natalie Garzon; Vik, Frøydis Nordgård; Helle, Christine; Hillesund, Elisabet Rudjord; Øverby, Nina Cecilie & Helland, Sissel Heidi [Show all 15 contributors for this article] (2024). Implementing an early-life nutrition intervention through primary healthcare: staff perspectives. BMC Health Services Research. 24(1). doi: 10.1186/s12913-024-11582-z. Full text in Research Archive
  • Valen, Erlend Nuland; Øverby, Nina Cecilie; Hardy-Johnson, Polly; Vik, Frøydis Nordgård; Salvesen, Lorentz & Omholt, Mona Linge [Show all 8 contributors for this article] (2023). Lessons learned from talking with adults about nutrition: A qualitative study in the PREPARED project. Maternal & Child Nutrition. ISSN 1740-8695. 20(S2). doi: 10.1111/mcn.13540. Full text in Research Archive
  • Valand, Ida Ulrikke; Øverby, Nina Cecilie; Strömmer, Sofia; Barker, Mary Elizabeth; Bjornes, Camilla & Nordli, Julie [Show all 11 contributors for this article] (2022). “It is really just brilliant to get credits for something that is so important to you!” Skills for Life: University students’ perceptions of a planned dietary life skills course. PLOS ONE. 17(4). doi: 10.1371/journal.pone.0260890. Full text in Research Archive
  • Illøkken, Kristine Engebretsen; Johannessen, Berit; Barker, Mary Elizabeth; Hardy-Johnson, Polly; Øverby, Nina Cecilie & Vik, Frøydis Nordgård (2021). Free school meals as an opportunity to target social equality, healthy eating, and school functioning: experiences from students and teachers in Norway. Food & Nutrition Research (FNR). ISSN 1654-6628. 65. doi: 10.29219/fnr.v65.7702. Full text in Research Archive
  • Helland, Sissel Heidi; Øverby, Nina Cecilie; Blomkvist, Eli Anne Myrvoll; Hillesund, Elisabet Rudjord; Strømmer, Sofia & Barker, Mary Elizabeth [Show all 7 contributors for this article] (2021). Wow! They really like celeriac! Kindergarten teachers' experiences of an intervention to increase 1-year-olds' acceptance of vegetables. Appetite. ISSN 0195-6663. 166. doi: 10.1016/j.appet.2021.105581. Full text in Research Archive

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  • Øverby, Nina Cecilie; Hillesund, Elisabet Rudjord; Helland, Sissel Heidi; Helle, Christine; Wills, Andrew Keith & Lamu, Admassu Nadew [Show all 23 contributors for this article] (2023). Evaluating the effectiveness and implementation of evidence-based early-life nutrition interventions in a community setting a hybrid type 1 non-randomized trial – the Nutrition Now project protocol. Frontiers in Endocrinology. 13. doi: 10.3389/fendo.2022.1071489. Full text in Research Archive

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Published Apr. 16, 2024 11:04 AM - Last modified Jan. 14, 2026 12:35 PM