Abstract : The aim of this research is to examine the relation between weight and cognitive
restraint (CR), which is the intention to control food intake in order to maintain or
lose weight, in a general French population sample. Is CR more prevalent in individuals
with obesity than overweight, underweight or normal-weight subjects in this
cross-sectional study? Are people affected by obesity non-restrained eaters? A total
of 507 French people (80.2% women and 19.8% men), aged 18-78 years, responded
to an online questionnaire. It appears that the most used questionnaire measuring CR
has content validity problems as it seems to measure effective control and not the
intention. Therefore, a numeric scale was used to answer the questions. Even if it is
not possible in this study to test a causal link with latent variable modelling, our
results seem to show that people with obesity more frequently intend to eat less or
to eat healthier and/or to eat less sugar and fat than other people in order to control
their weight. However, people affected by obesity do not succeed in so doing. These
results raise the question of treatments advocating the increase of self-control.
Finally, it would be necessary to obtain a real, scientific consensus on what CR is and
on how to measure it in order to study the most effective treatments for people with
overweight or obesity.