Consumption of alcohol‐free and alcoholic beverages among Dutch university students: Substitution or addition?

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INTRODUCTION: Alcohol-free drinks are suggested as healthy alternatives for alcohol consumption. To achieve benefits, alcohol-free beverages must be consumed as a substitute for alcoholic beverages, not in addition. This study examined in a student sample (i) the frequency/quantity of alcohol(-free) consumption; (ii) the relationship between alcohol-free and alcohol consumption; (iii) alcohol-free drinks as substitution or in addition to alcoholic drinks; and (iv) possible gender differences. METHODS: Survey data regarding alcohol(-free) consumption (May-June 2022) of Dutch university students (N = 4.318, females 70.2%; males 28.5%, average age 22.6 years [SD = 2.4]). RESULTS: (i) A total of 42.8% of the students indicated they had never consumed alcohol-free versus 10.1% who never consumed alcoholic beverages; (ii) the group who recently consumed alcohol-free also most often recently consumed alcoholic beverages (42.7%). The group that had never consumed alcohol-free drank on average more alcoholic beverages (M = 3.98 on a drinking day) compared to past and recent alcohol-free drinkers (respectively, M = 3.44 and M = 3.59). (iii) Most students (54.9%) reported drinking alcohol-free beverages in addition to alcohol, 17.4% indicated using it as a substitution. Students who consumed alcohol-free as 'substitution' were older, more often living alone or with a partner, less often living with parents and more often involved in a steady relationship compared to students who consumed in 'addition'. (iv) No prominent gender differences were found. DISCUSSION AND CONCLUSIONS: The majority of students remained consuming the same number of alcoholic beverages since they started consuming alcohol-free beverages, pointing to an addition effect. A small group did use alcohol-free beverages as a substitute for their alcohol consumption.

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