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Food Addiction Institute
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Of the 35 articles (52 studies) included in this review, 31 articles (47 studies) reported results supporting the criteria for addiction, two articles (two studies) were mixed, and two articles (three studies) reported unsupportive findings. Some have proposed that food addiction should be classified as a behavioral disorder (i.e., “eating addiction”) similar to a gambling disorder. However, the vast majority of studies identified for this review, have conceptualized food addiction as a substance use disorder. Behavioral addictions involve dependence on a behavior, not a substance; however, addictive-like consumption of highly palatable food involves both a behavior (eating) and substance (food). Some classic substance addictions, such as tobacco use disorder, also appear to include behavioral dependencies. However, these behavioral patterns are also frequently observed among individuals with alcohol and other drug use disorders. Study results generally support the validity of food addiction as a diagnostic construct, particularly as it relates to foods high in added sweeteners and refined ingredients.
Food addiction is an emerging area of both clinical and research interest. The current review discussed several definitional and conceptual categorisations that have been put forth to quantify food addiction. However, the YFAS 2·0 concept predominates the literature. Similarly, evidence shows some similarities of food addiction with established eating disorders, particularly BED. Thus, the current review supports two main areas of contention that warrant much more research; considering food addiction as a substance-related addiction or a behavioural-related addiction and if food addiction is distinct from established eating disorders. Further research is needed to continue to delineate and clarify controversies about similarities and differences in food addiction with other concepts and established disorders.
What Is the Evidence for Food Addiction? A Systematic Review
Gordon, E. L., Ariel-Donges, A. H., Bauman, V., & Merlo, L. J. (2018). What Is the Evidence for "Food Addiction?" A Systematic Review. Nutrients, 10(4), 477.
What Is the Evidence for Food Addiction? A Systematic Review

35 articles and 52 studies were identified.

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