Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS);
Faculdade de Desporto da Universidade do Porto (FADEUP);
Faculdade de Medicina da Universidade de Lisboa (FMUL).
The increasing prevalence of obesity worldwide, including in Portugal, is alarming. Bariatric surgery is an effective treatment to treat severe obesity, which induces lasting changes in diet. Despite the potential effectiveness of bariatric surgery in promoting weight loss, a considerable proportion of patients still face the challenge of achieving optimal post-surgery outcomes. The timing of eating (chrono-nutrition), in addition to the content of what is eaten, chronotype (i.e. individual’s preference for morningness or eveningness) and social jetlag (a marker of circadian misalignment), have been implicated in weight regulation. However, the current understanding of these chrono-related behaviours in individuals undergoing bariatric surgery is still scarce. Thus, this poject aims to evaluate the role of chrono-nutrition, chronotype, and circadian misalignment in the weight-loss trajectory among individuals living with severe obesity who underwent bariatric surgery.
