Diets With a Spectrum of Fat Intake for Preventing Obesity: A Randomized Controlled-feeding Trial

NCT ID: NCT02355795

Last Updated: 2016-11-28

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

307 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-11-30

Brief Summary

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The aim of the current study is to evaluate the effects of diets with three levels of dietary fat on weight change and related cardiometabolic risk factors in a 6-month randomized controlled-feeding trial.

Detailed Description

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Conditions

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Healthy

Keywords

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weight change diet dietary fat feeding design

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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low-fat diet

Participants will be provided low-fat diet for 6 months

Group Type EXPERIMENTAL

low-fat diet

Intervention Type BEHAVIORAL

Energy from total fat, protein and carbohydrates are 20%, 14% and 66%, respectively

moderate-fat diet

Participants will be provided moderate-fat diet for 6 months

Group Type EXPERIMENTAL

moderate-fat diet

Intervention Type BEHAVIORAL

Energy from total fat, protein and carbohydrates are 30%, 14% and 56%, respectively

high-fat diet

Participants will be provided high-fat diet for 6 months

Group Type EXPERIMENTAL

high-fat diet

Intervention Type BEHAVIORAL

Energy from total fat, protein and carbohydrates are 40%, 14% and 46%, respectively

Interventions

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low-fat diet

Energy from total fat, protein and carbohydrates are 20%, 14% and 66%, respectively

Intervention Type BEHAVIORAL

moderate-fat diet

Energy from total fat, protein and carbohydrates are 30%, 14% and 56%, respectively

Intervention Type BEHAVIORAL

high-fat diet

Energy from total fat, protein and carbohydrates are 40%, 14% and 46%, respectively

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Students in Zhejiang University or working stuff in the Chinese PLA General Hospital
* 18 ≤ age ≤ 35
* Body Mass Index \< 28\*
* Are willing to eat all of the study foods even when full
* Are willing to eat only foods provided

Exclusion Criteria

* Systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg
* Total cholesterol ≥ 239 mg/dL
* Low-density lipoprotein cholesterol ≥ 159 mg/dL
* Triglycerides ≥ 199 mg/dL
* Blood glucose ≥ 110 mg/dL
* Change in body weight exceeding ± 10% during the prior year
* Energy intake is too low or too high
* Unwillingness or special requirement for diet that could not be modified
* Poor adherence during the recruiting meeting or unsatisfactory completion of keeping food diary or filling questionnaire at any time before randomization
* Eating disorder or any psychosocial or scheduling factors that could impede study outcomes
* Have a history of diagnosed CVD, diabetes, cancer or inflammatory diseases
* Have a history of a mental illness
* Have diagnosed endocrine, pulmonary or hematological disease
* Have diagnosed bowel disease or malabsorption that would prevent the participants from complying with the dietary restrictions of the feeding trial
* Renal or liver insufficiency
* Other chronic disease thought to interfere with the effect of the diet or with participation or adherence
* Current use of supplements or anti-inflammation medications or medications affecting glucose, lipid metabolism and blood pressure
* Smoking or alcoholic beverage intake \>1 times per week
* Current or planned pregnancy prior to end of study, or breast-feeding
* Irregular menstrual cycles
* Have birth control medication
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Basic Research Program, China

OTHER

Sponsor Role collaborator

National Natural Science Foundation of China

OTHER_GOV

Sponsor Role collaborator

Chinese PLA General Hospital

OTHER

Sponsor Role collaborator

Zhejiang University

OTHER

Sponsor Role lead

Responsible Party

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Duo li

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Zhejiang University

Hangzhou, Zhejiang, China

Site Status

Countries

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China

References

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Wan Y, Yuan J, Li J, Li H, Zhang J, Tang J, Ni Y, Huang T, Wang F, Zhao F, Li D. Unconjugated and secondary bile acid profiles in response to higher-fat, lower-carbohydrate diet and associated with related gut microbiota: A 6-month randomized controlled-feeding trial. Clin Nutr. 2020 Feb;39(2):395-404. doi: 10.1016/j.clnu.2019.02.037. Epub 2019 Feb 27.

Reference Type DERIVED
PMID: 30876827 (View on PubMed)

Wan Y, Wang F, Yuan J, Li J, Jiang D, Zhang J, Li H, Wang R, Tang J, Huang T, Zheng J, Sinclair AJ, Mann J, Li D. Effects of dietary fat on gut microbiota and faecal metabolites, and their relationship with cardiometabolic risk factors: a 6-month randomised controlled-feeding trial. Gut. 2019 Aug;68(8):1417-1429. doi: 10.1136/gutjnl-2018-317609. Epub 2019 Feb 19.

Reference Type DERIVED
PMID: 30782617 (View on PubMed)

Wan Y, Wang F, Yuan J, Li J, Jiang D, Zhang J, Huang T, Zheng J, Mann J, Li D. Effects of Macronutrient Distribution on Weight and Related Cardiometabolic Profile in Healthy Non-Obese Chinese: A 6-month, Randomized Controlled-Feeding Trial. EBioMedicine. 2017 Aug;22:200-207. doi: 10.1016/j.ebiom.2017.06.017. Epub 2017 Jun 20.

Reference Type DERIVED
PMID: 28655596 (View on PubMed)

Other Identifiers

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DUOLI201501

Identifier Type: -

Identifier Source: org_study_id