Fiber Blends and Gut Microbiota (FB) (FB)

Inclusion Criteria:

• BMI ≥25.0 and ≤35.0 kg/m2
• ≥18 and ≤60 years

Exclusion Criteria:

• previous bariatric surgery
• significant organ system dysfunction (e.g., diabetes, severe pulmonary, kidney, liver or cardiovascular disease)
• cancer or cancer that has been in remission for <5 years
• major psychiatric illness
• inflammatory gastrointestinal disease
• pregnant or lactating women
• use of medications that are known to affect the study outcome measures and that cannot be temporarily discontinued for this study
• use of medications known to affect the composition of the gut microbiota within the last 30 days (most notably antibiotics)
• bowel movements <3 times per week
• vegans, vegetarians, those with lactose intolerance and/or severe allergies/aversions/sensitivities to foods and ingredients included in the prescribed meal plan
• persons who are not able to grant voluntary informed consent
• persons who are unable or unwilling to follow the study protocol or who, for any reason, the research team considers not an appropriate candidate for this study, including non-compliance with screening appointments or study visits.