Completed

Health at Every Size (HAES) Model for Obese Women with Chronic Dieting History

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Study Aim

This study aims to provide a treatment approach using the Health at Every Size (HAES) model for obese women who have a history of chronic dieting.

What is being tested

Data Collection

Who is being recruted

Diabetes Mellitus+6

+ Diabetes Mellitus, Type 2

+ Endocrine System Diseases

From 30 to 45 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Interventional
Study Start: January 2000
See protocol details

Summary

Principal SponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: January 1, 2000

Actual date on which the first participant was enrolled.

Increasingly more individuals are trying to lose weight. Indeed, many women, regardless of their size, experience a life-long battle and preoccupation with their weight. Despite the attention to weight and the increase in diet behavior, the incidence of obesity continues to rise. There is little data to show improved long term success for the majority of participants who engage in weight loss behaviors. The specific aim is to improve the psychological and metabolic health of obese women with a history of chronic dieting through encouraging "Health at Every Size" (HAES). This treatment model emphasizes "intutitive eating," i.e., internal regulation of eating (responding to cues of hunger, appetite and satiety). The HAES model is being compared to the current standard of care in obesity treatment, energy restriction dieting, which encourages cognitive control of eating and weight reduction.

Official TitleEvaluating "Health at Every Size"(HAES) as an Alternative Obesity Treatment Model 
NCT00074633
Principal SponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

79 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.


Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Female

Biological sex of participants that are eligible to enroll.

From 30 to 45 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Diabetes MellitusDiabetes Mellitus, Type 2Endocrine System DiseasesHypercholesterolemiaHyperlipidemiasMetabolic DiseasesGlucose Metabolism DisordersDyslipidemiasLipid Metabolism Disorders

Criteria

* Caucasian; * female; * age 30-45 years; * Body Mass Index (BMI)\>30 m/kg2; * non-smoker; * not pregnant or lactating; * Restraint Scale (Herman and Polivy, 1988) score \>15, indicating a history of chronic dieting; * no recent myocardial infarction; * no active neoplasms, Type 1 diabetes or insulin-dependent Type 2 diabetes, nor history of cerebrovascular or renal disease.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 2 locations

Suspended

Nutrition Department, University of California, Davis

Davis, United StatesSee the location
Suspended

Western Human Nutrition Research Center

Davis, United States
Completed2 Study Centers