The Influence of Reducing Diets on Changes in Thyroid Parameters in Obese Women With Hashimoto's Disease

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-29

Study Completion Date

2019-10-31

Brief Summary

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Hashimoto's disease is listed among the most common endocrine causes of obesity. As treatment of obesity in women with Hashimoto's disease is frequently unsuccessful, the aim of this study was to evaluate the effectiveness of two different reducing diets and their influence on changes in thyroid parameters in the female patients. A six-month observational/interventional study was performed on 100 women aged 18-65 years, previously diagnosed with Hashimoto's disease and obesity and receiving L-thyroxine. The women were randomly assigned to the test group (group A, n=50) following elimination/reducing diets, and the control group (group B, n=50) following reducing diets with the same caloric content (without elimination). Anthropometric and thyroid parameters were evaluated at the beginning, after 3 months and after 6 months of treatment.

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Detailed Description

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Conditions

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Hashimoto Disease Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Test group (group A)

The women were randomly assigned to group A. Test group included 50 women aged 18-65 years with previously diagnosed Hashimoto's disease and obesity. Hashimoto's disease (AITD) was diagnosed by a specialist based on the ultrasound image characteristic of AITD and high levels of anti-thyroid antibodies.

Group Type EXPERIMENTAL

Individually balanced elimination/reducing diets

Intervention Type BEHAVIORAL

Participants received diets in the range of 1400-1600 kcal/day (with a deficit of about 1000 kcal/day, depending on the resting metabolism and energy expenditure during the day). At the initial visit and every subsequent month, the women received individually balanced elimination/reducing diets, in accordance with the previously performed food sensitivity tests for 6 months. Laboratory tests for type III food sensitivity in the IgG1-3 class using the ELISA method were performed in an accredited medical laboratory. Diets were designed by a qualified dietitian using the Aliant (Poland) diet calculator. Each diet had the same macronutrient content - 25% protein, 30% fat, and 45% carbohydrate, and met the daily requirements for micro and macro elements for the given age group.

Control group (group B)

The women were randomly assigned to group B. Control group included 50 women aged 18-65 years with previously diagnosed Hashimoto's disease and obesity. Hashimoto's disease (AITD) was diagnosed by a specialist based on the ultrasound image characteristic of AITD and high levels of anti-thyroid antibodies.

Group Type OTHER

Individually balanced reducing diets (without elimination)

Intervention Type BEHAVIORAL

Participants received diets in the range of 1400-1600 kcal/day (with a deficit of about 1000 kcal/day, depending on the resting metabolism and energy expenditure during the day). At the initial visit and every subsequent month, the women received individually balanced reducing diets (without elimination) for 6 months.Diets were designed by a qualified dietitian using the Aliant (Poland) diet calculator. Each diet had the same macronutrient content - 25% protein, 30% fat, and 45% carbohydrate, and met the daily requirements for micro and macro elements for the given age group.

Interventions

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Individually balanced elimination/reducing diets

Participants received diets in the range of 1400-1600 kcal/day (with a deficit of about 1000 kcal/day, depending on the resting metabolism and energy expenditure during the day). At the initial visit and every subsequent month, the women received individually balanced elimination/reducing diets, in accordance with the previously performed food sensitivity tests for 6 months. Laboratory tests for type III food sensitivity in the IgG1-3 class using the ELISA method were performed in an accredited medical laboratory. Diets were designed by a qualified dietitian using the Aliant (Poland) diet calculator. Each diet had the same macronutrient content - 25% protein, 30% fat, and 45% carbohydrate, and met the daily requirements for micro and macro elements for the given age group.

Intervention Type BEHAVIORAL

Individually balanced reducing diets (without elimination)

Participants received diets in the range of 1400-1600 kcal/day (with a deficit of about 1000 kcal/day, depending on the resting metabolism and energy expenditure during the day). At the initial visit and every subsequent month, the women received individually balanced reducing diets (without elimination) for 6 months.Diets were designed by a qualified dietitian using the Aliant (Poland) diet calculator. Each diet had the same macronutrient content - 25% protein, 30% fat, and 45% carbohydrate, and met the daily requirements for micro and macro elements for the given age group.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Diagnosed with Hashimoto's disease
* BMI over 30 kg/m2
* Taking the L-thyroxine, 200 mcg of 1-selenomethionine/day, and 30 mg of zinc gluconate/day throughout the study period