Intermittent dietary restrictionGeneral health education
Intermittent dietary restriction: Intermittent dietary restriction will include the ILCD and ICR, which will be self-administered interventions in daily lives. The ILCD intervention will ask participants to restrict carbohydrate intake to ≤ 50 g/d on two consecutive or discontinuous days per week. The ICR intervention will ask participants to restrict caloric intake to 600 kcal/d for boys and 500 kcal/d for girls on two consecutive or discontinuous days per week.
At baseline, participants will receive face-to-face oral dietary instructions (e.g., principle of dietary restriction, sample menus, food list with macronutrients). Participants will receive the intervention booklets containing dietary advice and sample menus for diet according to the requirements of the dietary intervention.
Participants will be required to record dietary and physical activity data on a regular basis. The total intervention duration will be 12 months, including a 3-month intervention phase and a 9-month self-maintenance phase.
General health education: General health education based on dietary and physical activity guidelines for Chinese children and adolescents, will regularly send offline and online promotional materials to participants.
Study summary
This randomized trial aims to evaluate the health-promoting effects of intermittent dietary restrictions, including intermittent low-carbohydrate diet (ILCD) and calorie restriction (ICR), in school-aged children with cardiometabolic risk (CMR) compared with general health education based on dietary and physical activity guidelines for Chinese children.
Eligibility
Sex
ALL
Min age
7 Years
Max age
18 Years
Healthy volunteers
No
Inclusion Criteria:
* Aged 7-18 years at baseline.
* At least one of the following cardio-metabolic abnormalities:
1. Prediabetes (Impaired fasting glucose: 5.6 ≤ fasting blood glucose level ≤ 6.9 mmol/L; or Impaired glucose tolerance: 7.8 ≤ blood glucose level after 2 hours postprandial ≤ 11.0 mmol/L).
2. Lipid abnormalities (High-density lipoprotein cholesterol ≤ 1.04 mmol/L; or Low-density lipoprotein cholesterol ≥ 3.37 mmol/L; or Triglycerides ≥ 1.70 mmol/L, or Total cholesterol ≥ 5.18 mmol/L).
3. Elevated blood pressure (Systolic/diastolic blood pressure consistently higher than the 90th percentile for gender, age, and height; or systolic/diastolic blood pressure ≥ 120/80 mmHg).
Exclusion Criteria:
* Previously diagnosed with heart failure, severe malnutrition, immune deficiency, liver or kidney disease, cancer, or other diseases deemed unsuitable for participation.
* Had a history of bariatric surgery.
* Used weight loss pills or supplements in the last three months.
* Other situations unsuitable for participation.
Primary outcome measure(s)
Number of participants with reversal of at least one cardiometabolic abnormalities — At month 3 from baseline The primary outcome is a composite outcome that will be measured by combining multiple reverse outcomes of the following cardiometabolic abnormalities: (1) prediabetes; (2) lipid abnormalities; (3) elevated blood pressure. It is defined as occurring if any cardiometabolic abnormality has a reversal outcome at 3rd month of study phrase.
Reversal of cardiometabolic abnormalities is defined as: at 3rd month of study phrase, at least one of the following status changed from abnormal at baseline to normal:
i. Prediabetes; ii. Lipid abnormalities; iii. Elevated blood pressure.
Trial sites (1)
Facility
City
Region
Status
Children's Hospital of Fudan University
Shanghai
China
Recruiting
More Children's Hospital of Fudan University trials in China
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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