Westlake Precision Nutrition Study 2 (WePrecision2)

Summary

This is a dietary intervention study, which aims to explore different diet challenges for glucose metabolism, including carbohydrates and fasting dietary pattern. Considering the glucose responses to the same food are largely heterogeneous among people, this study integrates the concepts of precision nutrition and N-of-1 design. The study also aims to discover the different impact of the time-restricted diet (TRD) and the energy-restricted diet (ERD) on host metabolic health and our hair growth.

Conditions

• Healthy
• Overweight and Obesity

Interventions

OTHER

refined carbohydrate breakfast

After wearing CGM on Day 1, participants will be provided with breakfast A once daily on Day 3, Day 4, Day 7, Day 8, Day 10, Day 12. Breakfast A contains white bread (50g) and milk powder (25g). Since lunch and dinner would serve as wash-out meals, participants will be free to choose food but provide a record of their diets.

OTHER

whole grain breakfast

After wearing CGM on Day 1, participants will be provided with Breakfast B once daily on Day 5, Day 6, Day 9, Day 11. Breakfast B contains plain oats (35g) and milk powder (25g). Since lunch and dinner would serve as wash-out meals, participants will be free to choose food but provide a record of their diets.

OTHER

energy-restricted diet

After completing the baseline data and biological sample collection, the ERD group volunteers underwent a 10-day dietary intervention from day 3 to day 12. During this period, a standard breakfast was provided to all volunteers daily by the research staff through the school cafeteria. The ERD group volunteers still had their lunch and dinner provided by the research staff through the school cafeteria to ensure their daily energy intake was controlled between 1200-1500 kcal.

OTHER

time-restricted diet

After completing the baseline data and biological sample collection, the volunteers in the TRD group will undergo a 10-day dietary intervention from day 3 to day 12. The TRD group needs to adjust their breakfast eating time to after 10:00 am daily, and they are free to choose their own lunch and dinner according to their dietary habits but must finish their meals before 4:00 pm. During this time window, no other energy-providing foods should be consumed.

Sponsors & Collaborators

• Westlake University

  lead OTHER

Principal Investigators

• Ju-Sheng Zheng, PhD · Westlake University

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

SINGLE

Model

CROSSOVER

Eligibility

Min Age

18 Years

Max Age

60 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-05-08

Primary Completion

2023-05-19

Completion

2023-05-19

Countries

• China

Study Locations