The Precision Nutrition New York Study
Recruiting · Ithaca, New York
Always free
Study care at no cost to you
For your time and travel
Many studies pay you back
Most need no insurance or papers
Legal status usually isn't required; we'll tell you each study's requirements
Interpreters available
Ask for your language
Your choice
Voluntary — you can stop anytime
What is this study?
Dietary fiber has been shown to have beneficial effects on human health through its impact on microbes present in the gut. However, these effects can vary between individuals, and everyone may not reap the same health benefits by eating the same sources of fiber.
It is , overseen by an independent and licensed medical staff.
Read the full clinical description
Dietary fiber has been shown to have beneficial effects on human health through its impact on microbes present in the gut. However, these effects can vary between individuals, and everyone may not reap the same health benefits by eating the same sources of fiber. Factors predicting how an individual's gut microbes as well as the beneficial metabolites produced by these microbes change in response to different sources of fiber would be helpful in developing precision nutrition approaches that maximize the benefits of dietary fiber. The objective of this study is to evaluate candidate predictors of gut microbiota response to fiber sources from either whole grains or fruits and vegetables.
Who this study is looking for
In plain language, from the study's own rules. The study team confirms the full details with you — this isn't a final yes or no.
✅ You may be able to join if…
- •Age is between 21 and 50 years.
- •BMI is between 25 and 30 (BMI is a body measure calculated from height and weight).
- •You can get height, weight, waist, hip measurements, and body composition measured during the study.
- •You can provide saliva samples and give 10 stool samples over 11 weeks.
- •You can increase your dietary fiber to the recommended level and track what you eat on one weekday and one weekend day each week.
🚫 You may not be able to join if…
- •You have an electronic medical implant (for example, a pacemaker).
- •You have an untreated thyroid problem.
- •You used systemic antibiotics (IV, shots, or pills) within the last 4 months.
- •You currently have an acute disease (a moderate or severe illness, with or without fever).
- •You have certain untreated gut diseases (like inflammatory bowel disease, ulcerative colitis, Crohn’s, celiac disease, IBS moderate-severe, persistent infectious stomach/intestinal inflammation, chronic unknown diarrhea, Clostridium difficile infection, or chronic constipation).
Are you a good fit?
Simplified highlights. The study team always confirms the full details with you.
- ✓Adults roughly 21–50
- ✓A BMI around 25 or higher
- ✓Have Obesity / overweight
- !Some conditions may not be a fit: Heart / cardiovascular disease, Crohn's / ulcerative colitis (IBD)
- !Not for people who are pregnant or breastfeeding
What to expect, step by step
- 1
Usually a few weeks
The study team checks whether the study is a good fit for you, with a visit and sometimes lab tests. You can ask any questions before deciding.
- 2
Treatment
If you join and choose to continue, you receive the study treatment and are watched closely by medical staff.
- 3
Follow-up
After treatment, the team checks on your health and confirms the visit schedule with you. You can leave the study at any point.
Has this treatment been tested before?
The study team can share what safety testing has been done so far.
What you need to know before you apply
What is this study testing?+
Dietary fiber has been shown to have beneficial effects on human health through its impact on microbes present in the gut. However, these effects can vary between individuals, and everyone may not reap the same health benefits by eating the same sources of fiber.
Is it safe? Who makes sure of that?+
This is a research study. Every study is reviewed and monitored by an independent ethics board (called an IRB) whose job is to protect participants, and care is overseen by licensed medical staff. You'll be told the known risks before you agree to anything, and you can stop at any time.
Will I get a placebo instead of the real treatment?+
Some studies compare a treatment against a placebo (an inactive version), and some don't. If this one does, the study team will explain your chances of receiving the active treatment before you decide. Nothing is hidden from you.
Do I have to stop taking my current medications?+
It depends on the study. Some let you stay on your current medications and some ask you to adjust them. Never stop a medication on your own — the study team will review everything with you first.
Does it cost anything? Will I be paid?+
Study-related care is provided at no cost to you. Some studies also pay for your time; the coordinator can tell you if this one does. You should never be asked to pay to take part.
Do I need insurance? Will anyone ask about my immigration status?+
No. You do not need health insurance to take part in a research study, and you will not be asked about your immigration status to join. Taking part is about whether you're a medical fit for the study.
What if English isn't my first language?+
You have the right to understand everything before you agree. Study sites can often provide materials or an interpreter in your language — you can ask the coordinator for one.
Is my information private?+
Yes. Your health information is only shared with the study sites you choose to be contacted by, and only to help match and enroll you. It is never sold, and you can ask us to delete it at any time.
Some requirements (like specific lab values or timing) are confirmed directly by the study team, not by us.
Source: ClinicalTrials.gov · NCT06777498 · Locations: New York