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  • Title: Personality Traits and Occupational Demands Are Linked to Dietary Supplement Use in Soldiers: A Cross-sectional Study of Sensation Seeking Behaviors.
    Author: Hatch AM, Cole RE, DiChiara AJ, McGraw SM, Merrill EP, Wright AO, Lieberman HR, Bukhari AS.
    Journal: Mil Med; 2019 Mar 01; 184(3-4):e253-e262. PubMed ID: 30137399.
    Abstract:
    INTRODUCTION: Military personnel use dietary supplements (DS) more frequently and in a higher quantity than the general population. Patterns of DS used and the motivation for use among the military population are different than those of the civilian population. Soldiers are much more likely to use potentially dangerous DS purported to enhance physical performance and/or promote weight loss in spite of limited evidence regarding the safety and efficacy of these products. Sensation seeking (SS) behaviors can be associated with risky lifestyle behaviors and may be associated with use of DS by Soldiers. This study assessed Soldiers' SS behaviors in relation to DS use and various demographic factors. MATERIALS AND METHODS: Demographic and behavioral questionnaires were administered to 289 Soldiers (mean ± SD, 28 ± 6 years, 27 ± 3 kg/m2 BMI, 83% male) at three U.S. military installations. The Brief SS Scale (four 10-point subscales) and Arnett Inventory of SS (two 40-point subscales) were used to assess SS behaviors. Independent sample t-tests determined the significant differences between SS subscale scores of DS users and non-users for each type of DS (i.e., protein, multivitamin, etc.). One-way analysis of variances and Tukey's post hoc comparisons assessed differences in SS scores across demographic categories. Tukey's post hoc analyses assessed SS scores between users and non-users within the DS categories. RESULTS: Overall, 75% of Soldiers used DS ≥1 time/week. The most frequently used DS were protein/amino acids (52%), multivitamins/multiminerals (47%), "other" supplements (43%), and combination products (35%). Overall, DS users scored higher in experience seeking (8.0 ± 1.7 vs 7.5 ± 2.0; p < 0.05) and novelty (28.4 ± 3.7 vs 26.8 ± 4.7; p < 0.05) than non-users. Protein/amino acid users scored higher than non-users for all six SS traits: experience seeking (p < 0.001), boredom susceptibility (p < 0.001), thrill seeking (p < 0.001), disinhibition (p < 0.01), novelty (p < 0.001), and intensity (p < 0.001). Users of bodybuilding DS scored higher than non-users in four of the six SS traits: boredom susceptibility (p < 0.05), thrill seeking (p < 0.001), disinhibition (p < 0.01), and intensity (p < 0.001). CONCLUSIONS: Soldiers who use DS that are frequently associated with health risks scored higher for sensation-seeking characteristics which are predictors of risky behaviors. Protein/AA and combination product DS users scored higher in sensation-seeking traits and this may be due to underestimation of risk, anticipation of positive outcomes, and/or high levels of confidence in these types of DS by high sensation seekers. Additional investigation into the association of sensation-seeking behaviors as predictors of harmful DS use is warranted.
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