Skip to content

The effect of changing eating behaviours on mood

The effect of an online diet intervention on depression symptoms in young adults with elevated depression symptoms who habitually consume a Western-style diet

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12622000177752
Enrollment
160
Registered
2022-02-02
Start date
2022-03-01
Completion date
Unknown
Last updated
2022-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

We aim to investigate the efficacy of a 4-week online diet intervention for improving depression symptoms in young adults aged 18-25. We hypothesise that the fresh food group will demonstrate great change on measures assessing nutrient composition, compared to the comfort cooking condition. Our previous work has shown that diet change can reduce symptoms of depression in young adults. However, it is not known what components of the diet change are required to observe improvement in mood. Furthermore, in our previous work, the resources were provided face-to-face, and it is not yet known whether providing the same resources in an online format will result in the same degree of change in diet.

Interventions

The intervention involves provision of diet recommendations and resources via a video (approximately 13 minutes) and written resources that were designed in collaboration with a dietitian for the purposes of this study. The fresh food (FF) group will be shown a video providing instructions regarding diet administered by a registered dietician. They will be provided diet recommendations in keeping with the Australian Guide to Healthy eating. Participants will be provided a link to a website to ac

The intervention involves provision of diet recommendations and resources via a video (approximately 13 minutes) and written resources that were designed in collaboration with a dietitian for the purposes of this study. The fresh food (FF) group will be shown a video providing instructions regarding diet administered by a registered dietician. They will be provided diet recommendations in keeping with the Australian Guide to Healthy eating. Participants will be provided a link to a website to access the video and educational resources, which will be developed specifically for this study (via Google Sites). They will be asked to follow the diet for 4 weeks. They will be provided a sample meal plan, recipes, vouchers to cover the increase in their food costs, and weekly text contact to aid compliance.

Sponsors

Macquarie University
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 25 Years
Healthy volunteers
No

Inclusion criteria

Aged 18-25, score >23.6 on the PANAS negative affect subscale; Score > 57 on the Dietary Fat and Sugar Screener (DFS).

Exclusion criteria

Very severe depression (i.e., indicated by a score > 25 on the PHQ-9), significant suicidal ideation (i.e., indicated by a score > 2 to Question 9 of the PHQ-9), pregnant women, currently dieting, history of eating disorders or metabolic disease(s), history of psychological illness other than depression or anxiety, medical condition that could be adversely affected by diet change, inability to use a computer, self-reported current or recent illicit drug use or alcohol use, sickness in the past week. If receiving antidepressant medication or therapy, on the same treatment for at least 2 weeks before study participation.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026