Bidirectional Associations Between Eating and Alcohol Use During Restricted Intake

Drunkorexia: is it really "just" a university lifestyle choice?

PURPOSE

The current study investigated the prevalence of compensatory behaviours (caloric restriction, increased exercise and bulimic tendencies) in response to alcohol consumption (also known as Drunkorexia) in students, non-students and previous students, as well as beginning to understand the presence of possible predictors of these behaviours (body esteem, sensation seeking).

METHODS

A volunteer sample of students, non-students and previous students (n = 95) completed the Compensatory Eating and Behaviours in Response to Alcohol Consumption Scale, a questionnaire which measures overall Drunkorexia engagement. The participants also completed the Body Esteem Scale for Adolescents and Adults Scale (BESAA) and the Brief Sensation Seeking Scale (BSSS) to investigate predictors of Drunkorexia.

RESULTS

The results indicated that there was no significant difference in Drunkorexia engagement and behaviours between students, non-students and previous students. It was also found that both low body esteem and high sensation seeking tendencies were significant predictors of Drunkorexia; specifically, the appearance esteem factor of the BESAA and the disinhibition factor of the BSSS.

CONCLUSIONS

Findings suggest that Drunkorexia is also present outside of student populations, and therefore, future interventions and research should include non-students in samples. In addition, findings support the idea that Drunkorexia cannot be classified solely as an eating disorder or a substance abuse disorder. As a result of this, further research should be conducted to fully understand why this complex behaviour exists.

EVIDENCE-BASED MEDICINE LEVEL

III (Evidence obtained from case-control analytic study).

Sugar intake and craving during alcohol withdrawal in alcohol use disorder inpatients

To assess whether changes in sugar intake and craving occur during alcohol withdrawal in humans, we conducted a prospective, observational study in a university hospital addictions treatment center. Recruited patients had severe alcohol use disorder and were hospitalized for 7 days in the short-stay unit for alcohol withdrawal and then for 6 weeks in the rehabilitation unit. During the hospital stay, they had no access to alcohol but had full access to sweet products and beverages in a shop and vending machines located inside the hospital. Alcohol craving was assessed using a visual analogue scale on Days 1, 15, and 45. Sugar craving, sweet products stored by patients in their rooms, and weight were assessed on the same days. Thirty-five patients were included. Sugar craving increased in 14 patients during the hospital stay, whereas no change was observed in the remaining 21. Significant increases in both the amounts of sweet products stored in the patients' rooms (p < 0.02) and weight (p < 0.05) were observed only in the sugar craving group. During the same period, alcohol craving decreased significantly in all patients. Changes in tobacco smoking were not different according to the sugar craving status and therefore cannot explain the observed differences. In conclusion, increased intake and craving for sugar after alcohol withdrawal were observed in 40% of the patients included in our prospective study, and these results were similar to those of a study conducted in the alcohol post-dependent state model in rats.

Does the Neuroimmune Modulator Ibudilast Alter Food Craving? Results in a Sample With Alcohol Use Disorder

OBJECTIVE

Ibudilast (IBUD) is a neuroimmune modulator that inhibits phosphodiesterase-4 and -10 and macrophage migration inhibitory factor. A randomized, placebo-control, crossover human laboratory trial advanced IBUD development for alcohol use disorder and found that IBUD reduced tonic levels of alcohol craving. Given the importance of considering medication effects on other appetitive behavior, the present study tested the effect of IBUD (50 mg bid) on food craving.

METHOD

The present study was a secondary data analysis of the trial of IBUD in non-treatment seekers with alcohol use disorder (N = 19). High-fat/high-sugar food craving was measured daily. Moreover, because substantial literatures show that small alcohol doses and psychological stress increase eating of high-fat/high-sugar food, craving for high-fat/high-sugar food was measured after alcohol infusion and stress reactivity.

RESULTS

Results indicated that IBUD did not alter tonic high-fat/high-sugar food craving. Alcohol infusion did not generally increase high-fat/high-sugar food craving but psychological stress did. Likewise, IBUD did not affect high-fat/high-sugar food craving after alcohol infusion but IBUD did increase high-fat/high-sugar food craving after psychological stress. Follow-up analyses revealed that, among individuals with lower depressive symptomatology, IBUD compared to placebo heightened the effect of psychological stress on high-fat/high-sugar food craving.

CONCLUSIONS

These results advance the development of IBUD for addiction indications by demonstrating that IBUD compared to placebo does not suppress other appetitive responses, namely craving for high-fat/high-sugar food among individuals with alcohol use disorder.