Superstition predicts favorable weight change in an open-placebo trial: a prospective study

Eat Weight Disord. 2015 Sep;20(3):389-95. doi: 10.1007/s40519-014-0167-7. Epub 2014 Nov 22.

Abstract

Given the difficulty of losing weight via adhering to healthy lifestyle choices, this study sought to understand how a placebo may elicit favorable weight change. Specifically, we examined if superstition may be related to increased responsiveness to an open-placebo. In this pilot study of 25 undergraduate participants, it was hypothesized that individuals with higher levels of superstition may be more responsive to a 3-week open-placebo weight change trial. Participants were given once-daily saltine crackers to use as open-placebos for weight change in their preferred direction (gain or loss). The weight of each participant was measured before and after the 3-week open-placebo period. A Pearson's r correlation showed a significant positive relationship between superstition and placebo responsiveness, determined by weight gain or loss in the preferred direction, r (25) = 0.493, p < 0.05. We hope these preliminary results engender future research on open-placebo uses for weight management.

MeSH terms

  • Adolescent
  • Body Mass Index
  • Female
  • Humans
  • Life Style
  • Male
  • Obesity
  • Pilot Projects
  • Placebos
  • Prospective Studies
  • Superstitions*
  • Weight Gain / physiology*
  • Weight Loss / physiology*
  • Young Adult

Substances

  • Placebos