About this trial
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.
Eligibility criteria
Qualifiers
Age is between 21-50 years
BMI is between 25-30. You can check your BMI here: https://www.cdc.gov/bmi/adult-calculator/index.html
Must be able to have height, weight, waist, and hip circumference, and body composition measured during the study
Must be able to provide saliva samples.
Disqualifiers
Electronic medical implant, for example, a pacemaker.
An existing, UNTREATED, thyroid condition.
Use of systemic antibiotics (intravenous injection, intramuscular, or oral) within the last 4 months.
An acute disease at the time of enrollment (Acute disease is defined as the presence of a moderate or severe illness with or without fever).
Trial design
Treatments tested in this trial
- Whole Grain Intervention then fruits and vegetables
- Fruit and Vegetable Intervention and then whole grains