Autopercepción y uso de suplementos nutricionales en usuarios de gimnasios / Self-Perception and Use of Nutritional Supplements in Gym Users

La insatisfacción con la imagen corporal puede desencadenar preocupación excesiva por la estética conduciendo a una utilización indiscriminada de suplementos nutricionales. Por ello, el objetivo de este estudio fue investigar la relación entre percepción y conformidad de imagen corporal al uso de suplementos nutricionales en usuarios regulares de gimnasios de la región del Biobío, Chile. La investigación corresponde a un estudio analítico transversal realizado en el segundo semestre del año 2018, en el que participaron 262 personas mayores de 18 años. Se observó una asociación estadísticamente significativa entre el uso de suplementos nutricionales y la percepción de la imagen corporal (OR 0,58, IC95%0,34–0,98; p=0,045), y entre el uso de suplementos nutricionales y la conformidad con la imagen corporal (OR 0,43, IC95%0,25–0,75; p=0,003). En conclusión, a mayor disconformidad con la imagen corporal o la presencia de una percepción alterada de ésta, mayor es la probabilidad de consumir suplementos nutricionales. (AU)

Dissatisfaction with body image can trigger excessive concern for aesthetics aspects leading to indiscriminate use of nutritional supplements. Therefore, the objective of this study was to investigate the relationship between the perception and conformity of body image with the use of nutritional supplements in regular users of gyms in the Biobío region, Chile. The research corresponds to a cross-sectional analytical study conducted in the second half of the year 2018, in 262 participants over 18 years old. A statistically significant association between the use of nutritional supplements and the perception of body image (OR 0.58, 95% CI 0.34–0.98; p = 0.045), and between the use of nutritional supplements and conformity with body image (OR 0.43, 95% CI 0.25-0.75; p = 0.003) were observed. In conclusion, to greater disagreement with body image or the presence of an altered perception of it, more likely to consume nutritional supplements. (AU)

Selected eating behaviours and excess body weight: a systematic review.

The relationship between obesity and the intake of macronutrients and specific foods is uncertain. Thus, there is growing interest in some eating behaviours because they may reflect the joint effect of several foods and nutrients and, thus, increase the likelihood of finding a link to obesity. This study examined the association between selected eating behaviours and excess weight in the general population throughout a systematic review of publications written in English, Spanish or Portuguese identified in a PubMed search up to 31 December 2010. We included 153 articles, 73 of which have been published since 2008. Only 30 studies had a prospective design; of these, 15 adjusted for sociodemographic variables, physical activity and energy or food intake. Moreover, definitions of eating behaviours varied substantially across studies. We found only small or inconsistent evidence of a relationship between excess weight and skipping breakfast, daily eating frequency, snacking, irregular meals, eating away from home, consumption of fast food, takeaway food intake, consumption of large food portions, eating until full and eating quickly. In conclusion, this review highlights the difficulty in measuring human behaviour, and suggests that a more systematic approach is needed for capturing the effects of eating behaviours on body weight.