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Substance Use & Misuse Volume 55, 2020 - Issue 11
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Original Articles

Expectancies about the Effects of Cannabis Use on Eating Disorder Symptoms

Christina ScharmerPsychology, Social Sciences, University at Albany, the State University of New York, Albany, New York, USACorrespondence[email protected]
ORCID Iconhttp://orcid.org/0000-0002-6112-546X
ORCID Icon,
Brianna R. AltmanPsychology, Social Sciences, University at Albany, the State University of New York, Albany, New York, USA
,
Joseph M. DonahuePsychology, Social Sciences, University at Albany, the State University of New York, Albany, New York, USAORCID Iconhttp://orcid.org/0000-0002-2843-1457
ORCID Icon,
Drew A. AndersonPsychology, Social Sciences, University at Albany, the State University of New York, Albany, New York, USA
&
Mitchell EarleywinePsychology, Social Sciences, University at Albany, the State University of New York, Albany, New York, USA
Pages 1825-1833 | Published online: 23 May 2020
 
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Abstract

Background: Substance use, specifically cannabis use, is common among individuals with eating disorder (ED) symptoms; however, few studies have specifically explored the relation between EDs and cannabis use. Purpose: The present study examined expectancies about the impact of cannabis on cognitive, affective and behavioral ED symptoms. Additionally, this study explored associations between cannabis-related expectancies, cannabis use and cannabis-related problems. Methods: Cannabis users with ED symptoms (N = 137) reported on frequency of cannabis use, cannabis-related problems and expectancies about the impact of cannabis on ED symptoms, Results: Participants expected cannabis to decrease restrictive eating, compensatory behaviors, and preoccupation with body shape and weight and fear of eating and weight gain. In contrast, cannabis was expected to increase binge-eating behaviors. Expectancies about the impact of cannabis use on ED symptoms were not associated with more frequent cannabis use nor were they associated with cannabis-related problems. Conclusions: These findings suggest that individuals believe cannabis will improve some ED symptoms; however, these expected improvements are not associated with increased cannabis use and problems. Future research should examine cannabis expectancies in clinical populations and should further explore the association between cannabis expectancies, use, and ED symptoms longitudinally.

Acknowledgements

Special thanks to Papa & Barkley for funding our prize money. The views expressed in this article are solely those of the authors and do not reflect an endorsement by Papa & Barkley. Papa & Barkley had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.

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