Healthy Clinical Trial - Westlake Precision Nutrition Study

Status Completed

Clinical Trial Summary

This is a dietary intervention study, which aims to explore different diet challenges for glucose metabolism, including carbohydrates and intermittent fasting (IF) 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 explore differences in brain structure and function between participants with different Body Mass Index (BMI) from the perspective of gut-brain axis.

Clinical Trial Description

This study aims for precision nutrition. Participants will be required to wear continuous glucose monitoring (CGM) for 14 days. The diet intervention will be carried out after wearing CGM on Day 1. Individual N-of-1 trial design will be employed during Day 2 to Day 7 to compare the difference of postprandial glucose response to white bread or plain oats. These two breakfasts will appear in alternating order every successive 2 days, and these successive 2 days will be defined as one set. There will be 3 sets during Day 2 to Day 7. Between lunch and dinner will be the wash out period for the remaining effect of the last breakfast intervention on blood glucose homeostasis. In this period, participants will be allowed to choose foods without restrictions, but dietary records are required. The period during Day 8 to Day 14 is defined as intermittent fasting (IF) period, and participants will experience moderate fasting on Day 9 and Day 13 with total energy intake restrained within 500-600 kcal. In these two fasting days, participants will be provided with daily three meals. Investigators will closely monitor participants' latent adverse response and compliance to ensure the intervention will be completed with adequate safety and high compliancy. Oral glucose tolerance test (OGTT) will be conducted in the morning of Day 8 and Day 14 to test the changes of glucose tolerance before and after one set of IF intervention. Electroencephalogram (EEG) and functional Magnetic Resonance Imaging (fMRI) scanning will be conducted as per standard procedure at baseline. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05054153
Study type	Interventional
Source	Westlake University
Contact
Status	Completed
Phase	N/A
Start date	October 8, 2021
Completion date	July 12, 2022

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.