Effect of a Low-calorie and High-protein Diet Specially Rich in Animal Protein Compared to a Low-calorie and High-protein Diet Specially Rich in Plant Protein on Glucose Metabolism in Subjects With Prediabetes or Type 2 Diabetes and Overweight or Obesity.

NCT ID: NCT05456347

Last Updated: 2022-11-08

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

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-07-01

Study Completion Date

2022-11-01

Brief Summary

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The aim of the study is to explore the effect of a low-calorie diet rich in protein (with a content of 35% of the total calories of the diet), mostly coming from animal sources (75% of total protein), compared to a hypocaloric diet rich in protein (with a content of 35% of the total calories of the diet), mostly coming from plant sources (75% of total proteins), in subjects with prediabetes or type 2 diabetes and overweight or obesity, on body composition, glucose and lipid metabolisms, after 6 months of intervention.

To achieve the objective, a nutritional intervention study is carried out by randomizing participants to: a) a hypocaloric and high-protein diet (35% of total calories), mostly of them coming from animal sources (75% of total protein); b) a hypocaloric and high-protein diet (35% of total calories), mostly of them coming from plant sources (75% of total protein). The study has a total duration of 6 months and include the assessment of clinical, anthropometric, biochemical and lifestyle parameters, at the beginning of the study and after 3 and 6 months of intervention.

Detailed Description

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Conditions

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Diabetes Mellitus, Type 2 Overweight and Obesity PreDiabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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High-protein animal diet.

Low-calorie and high-protein diet (35% of total calories), mostly of protein coming from animal sources (75% of total protein).

Group Type EXPERIMENTAL

Low-calorie and high-protein diet with the majority of protein coming from animal sources.

Intervention Type BEHAVIORAL

Diet was prescribed to the participant and menus and recipes were also provided.

High-protein vegetal diet.

Low-calorie and high-protein diet (35% of total calories), mostly of protein coming from plant sources (75% of total protein).

Group Type EXPERIMENTAL

Low-calorie and high-protein diet with the majority of protein coming from plant sources.

Intervention Type BEHAVIORAL

Diet was prescribed to the participant and menus and recipes were also provided.

Interventions

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Low-calorie and high-protein diet with the majority of protein coming from animal sources.

Diet was prescribed to the participant and menus and recipes were also provided.

Intervention Type BEHAVIORAL

Low-calorie and high-protein diet with the majority of protein coming from plant sources.

Diet was prescribed to the participant and menus and recipes were also provided.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Aged between 18 and 80.
* BMI between 27.5 kg/m2 and 40 kg/m2.
* Diagnosed as prediabetes or type 2 diabetes according to ADA criteria.
* Informed consent to be signed.

Exclusion Criteria

* Taking antidiabetic drugs (except for metformin with stable dose in the previous 6 months).
* Taking lipid-lowering drugs in unstable dose in the previous 2 months.
* Taking functional foods (i.e. sterols enriched food) or any other dietary supplement with a significant effect on lipid and glucose metabolism and body weight.
* Uncontrolled type 2 diabetes (i.e. glycated hemoglobin over 8%)
* Any disease that could affect study results (i.e. uncontrolled hypothyroidism).
* Alcohol intake over 30 g/day.
* Pregnancy or breastfeeding.
* Any other condition that investigators consider that could interfere with study outcomes.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Universidad de Zaragoza

OTHER

Sponsor Role lead

Responsible Party

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Rocio Mateo-Gallego

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Instituto de Investigación Sanitaria Aragón, Hospital Universitario Miguel Servet, Universidad de Zaragoza

Zaragoza, , Spain

Site Status

Countries

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Spain

References

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Rodrigo-Carbo C, Madinaveitia-Nisarre L, Perez-Calahorra S, Gracia-Rubio I, Cebollada A, Galindo-Lalana C, Mateo-Gallego R, Lamiquiz-Moneo I. Low-calorie, high-protein diets, regardless of protein source, improve glucose metabolism and cardiometabolic profiles in subjects with prediabetes or type 2 diabetes and overweight or obesity. Diabetes Obes Metab. 2025 Jan;27(1):268-279. doi: 10.1111/dom.16013. Epub 2024 Oct 17.

Reference Type DERIVED
PMID: 39420528 (View on PubMed)

Other Identifiers

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PI19/485

Identifier Type: -

Identifier Source: org_study_id

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