NCT03615690 · Stanford University
The Influence of a Fasting Mimicking Diet on Ulcerative Colitis
What this study is about
The purpose of this study is to see how a diet that mimics fasting effects inflammation in patients with mild to moderate Ulcerative Colitis (UC). The diet may allow users to receive the benefits of fasting while also being able to enjoy food (the ingredients of which are GRAS (generally recognized as safe) by the Food and Drug Administration (FDA).
View original scientific description
The purpose of this study is to see how a diet that mimics fasting effects inflammation in patients with mild to moderate Ulcerative Colitis (UC). The diet may allow users to receive the benefits of fasting while also being able to enjoy food (the ingredients of which are GRAS (generally recognized as safe) by the Food and Drug Administration (FDA). Research on dietary interventions and UC are very limited. Fasting mimicking diets (FMD) have been studied with support of the National Institute of Health and published in leading journals. This research investigates whether markers of inflammation decrease and/or quality of life increases after three cycles of a five-day period of the fasting mimicking diet, and may provide rationale for its use to treat UC.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Mild to moderate Ulcerative Colitis on the partial Mayo Score out of 9 (score between 2 to 7)
- Age of 18-70 at start of study (inclusive)
Exclusion criteria
- Women who are pregnant or nursing or expect to be pregnant
- Individuals allergic to nuts
- Individuals with a body mass index (BMI) lower than 18
- Individuals diagnosed with a serious medical condition as defined by the patient's physician, unless approved in writing by a physician
- Individuals who have been severely weakened by a disease or medical procedure,
- Individuals who are taking medication which may not be safely consumed with a calorie restricted diet
- Individuals with diabetes who are taking anti-diabetic drugs associated with risk of hypoglycemia
- Individuals with more than mild-moderate cardiovascular disease or life-threatening cancer (as determined by patient's physician) unless approved by a physician
- Individuals with history of severe cardiac disease (particularly uncompensated congestive heart failure NYHA grade 2 or more or LVEF \< 40%)
- Individuals with a history of syncope
- Individuals with dietary needs incompatible with the FMD meal plan
- Individuals with liver or kidney disorders that may be affected by very low glucose and protein content of the diet.
- Patients on a caloric restricted diet will also be excluded.
- Patients with relevant prior gastrointestinal surgery and consequences such as short bowel syndrome, ostomy of small or large intestine, hemi- or total colectomy, proctocolectomy, ileoanal pouch will be excluded.
Where
- Palo Alto, California
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Feb 27, 2026 · Source of record for eligibility and locations