Could a 5-Day Plant-Based diet help control prediabetes?
NCT ID NCT06518798
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tested whether a 5-day fasting-mimicking diet (FMD) is feasible and can lower blood sugar in 30 Asian Americans with prediabetes. Participants ate a special plant-based meal kit for five days, then had their blood sugar and physical measurements checked. The goal was to see if people would stick with the diet and if it might help control prediabetes.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Fasting-Mimicking Diet (a 5-day plant-based, calorie-restricted meal kit)
- What this could lead to
- If it works, this diet could help manage prediabetes and prevent progression to type 2 diabetes in Asian Americans.
- What could go wrong
- This is a very small pilot study with only 30 people, so results may not apply to everyone. The diet is short-term and effects on blood sugar may be temporary.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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30 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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May 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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30 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: * Identify as Asian American * Diagnosed with prediabetes according to at least one of the following: * HbA1C 5.7%-6.4% * Fasting blood glucose 100 to 125 mg/dL (5.6 to 6.9 mmol/L ) * Oral glucose tolerance test (OGTT) 140-199 mg/dL at two hours Exclusion criteria: * Individuals with a personal history of diabetes mellitus (ICD-10 codes E08-E13), cardiovascular disease, mental illness, drug dependency, pregnancy, and special dietary restrictions * Individuals taking insulin or insulin-like drugs and individuals taking hypoglycemic agents other than metformin * Individuals who are pregnant or breastfeeding * Individuals with anaphylaxis food allergies * Individuals who are allergic to tree nuts (macadamia, cashew, almond, pecan), soy, oats, sesame, or celery/celeriac * Individuals who have completed the FMD in the past year
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
UC Irvine
Irvine, California, 92617, United States
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