Dietary Counselling Plus Omega-3 Supplementation in the Treatment of Generalized Anxiety Disorder: A Randomized Wait-list Controlled Pilot Trial (EASe-GAD)

    Not Recruiting
  • End date
    Feb 1, 2024
  • participants needed
  • sponsor
    The Canadian College of Naturopathic Medicine
Updated on 1 September 2023


This study will assess the feasibility and acceptability of a combination intervention including dietary counselling and omega-3 fatty acid supplementation among women with generalized anxiety disorder. It will be randomized and wait-list controlled with 25 participants completing the 12-week intervention immediately and the other 25 participants completing the intervention after a 12-week wait period.


Generalized Anxiety Disorder (GAD) is a common mental health disorder involving high levels of worry or tension. The symptoms are persistent and distressing and interfere with an individual's functioning and quality of life. Clinical evidence suggests that nutritional interventions, based on the Mediterranean diet and omega-3 fatty acid supplementation improve the symptoms of depression. To date, the effect of diet change interventions on anxiety symptoms has not been studied in trials involving people with diagnosed anxiety disorders. The primary objective of this study is to test the feasibility and acceptability of a dietary counselling and omega-3 fatty acid supplementation intervention delivered to adult women with GAD. The secondary objectives include measuring changes in anxiety symptom severity, measuring changes in quality of life, measuring changes in biomarkers and evaluation of the components of the program.

This study is a randomized, wait-list controlled pilot trial delivering a 12-week, dietary counselling intervention and omega-3 supplementation to 50 adult women with GAD. Participant will complete seven individual counselling sessions which include nutrition education, personalized recommendations, mindful eating techniques, motivational interviewing, and goal setting. They will be provided with recipes, instructional videos, and food items. Questionnaires and blood work will be completed at baseline, after the wait period (for those in the wait-list group) and after the intervention. The questionnaires will measure changes in anxiety symptom severity, quality of life, diet quality, mindful eating behaviours, and self-efficacy and lab tests will measure changes in biomarkers of nutritional status. All participants will be asked to complete a brief satisfaction survey concerning the participant's level of satisfaction with the program, the aspects which were helpful or unhelpful, and opportunities for improvement. A sub-sample will be recruited to participate in a brief focus group in order to obtain more detailed qualitative responses about the participant experience and participant satisfaction. Additional information will be collected to characterize study participants including demographic information, body mass index, physical activity and food security.

Results from this study will lay the foundation for future large-scale studies in this area and may provide preliminary evidence of the role of diet counselling and omega-3 supplementation in the management of GAD.

Condition Generalized Anxiety Disorder
Treatment Dietary Counselling combined with Omega-3 Supplementation
Clinical Study IdentifierNCT05573672
SponsorThe Canadian College of Naturopathic Medicine
Last Modified on1 September 2023

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