Role of Dietary Habits in Efficacy of Bariatric Surgery - Study C

  • End date
    May 11, 2024
  • participants needed
  • sponsor
    Brigham and Women's Hospital
Updated on 4 October 2022
bariatric surgery
sleeve gastrectomy


The purpose of the study is to test how dietary habit interventions affect patients weight loss outcomes after bariatric surgery.


The obesity epidemic is a major public health concern with a significant economic burden in the USA. Bariatric surgery is the most effective and durable weight loss treatment, with long-term cardiometabolic health benefits. Among different types of bariatric procedures, sleeve gastrectomy (SG) has become the most commonly performed in USA. While SG is expected to result in a 50-60% excess weight loss, inter-individual differences in weight loss are large and approximately 25% of patients can be considered poor weight-loss responders who either do not lose a substantial amount of weight or regain the lost weight afterwards. The mechanisms underlying this clinical variation remain unknown and interventions to improve on these outcomes critically lacking. Of interest, altered daily dietary habits are experienced by a substantial proportion of bariatric surgery candidates, raising the question whether such alterations may contribute to inter-individual differences in weight loss success. Therefore, the purpose of the study is to test how dietary habit interventions affect patients weight loss outcomes after bariatric surgery. Since this is a single blind study, the details of the dietary interventions cannot be released during recruitment stage, but will be made public once enrollment closes.

Condition Bariatric Surgery, Sleeve Gastrectomy, Obesity
Treatment Dietary habits plan
Clinical Study IdentifierNCT03482986
SponsorBrigham and Women's Hospital
Last Modified on4 October 2022


Yes No Not Sure

Inclusion Criteria

Bariatric surgery (sleeve gastrectomy) patients

Exclusion Criteria

Insulin-dependent diabetes
Shift work within the past 1 year
Bipolar disorder
Post traumatic stress disorder (PTSD)
Drug or alcohol dependency
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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