The Science
Behind Sunfiber®
A clinically studied prebiotic fiber supported by a robust body of scientific research across digestive health, microbiome activity, and metabolic function.
Sunfiber® is one of the most extensively researched soluble fibers available, with more than 180 peer-reviewed studies examining its safety, tolerability, and health benefits. This research spans a wide range of populations, including healthy children, adults, seniors, and individuals with digestive sensitivity, which supports its role as an effective and well-tolerated prebiotic fiber.
Key Research Areas
Decades of scientific inquiry across multiple domains of human health.
REGULARITY &
GUT FUNCTION
Supports more consistent bowel movements in many different populations.
As a dietary fiber, Sunfiber passes through the gastrointestinal tract undigested until the colon, where it is fermented by the gut microbiome where it contributes to regularity in a wide range of populations.*
- Helps support more consistent bowel movements and better stool form*
- Helps those with occasional constipation or diarrhea*
- Found to help with regularity in IBS-C and IBS-D populations*
- Studied in both general and digestive-sensitive populations
MICROBIOME &
PREBIOTIC ACTIVITY
Supports beneficial gut bacteria and contributes to a balanced gut environment.
As a soluble prebiotic fiber, Sunfiber® is fermented by bacteria in the colon, helping to support the growth and activity of beneficial microbial populations.*
- Helps support beneficial bacteria such as Bifidobacteria, Lactobacillus and Akkermansia*
- Fermentation produces short-chain fatty acids (SCFAs)*
- Contributes to overall gut microbiome activity
- Studied in both general and digestive-sensitive populations
GLYCEMIC RESPONSE &
METABOLIC SUPPORT
Supports healthy glycemic response as part of a balanced diet.
Research suggests that Sunfiber® may help support post-meal glycemic response and satiety when incorporated into a balanced dietary pattern.
- May help support healthy blood glucose response*
- Associated with increased feelings of fullness after meals*
- Studied in the context of metabolic health
- Can be incorporated into functional nutrition strategies
DIGESTIVE TOLERANCE &
COMFORT
Designed to support digestive balance without common fiber-related discomfort.
Unlike some fibers that ferment rapidly or create high viscosity, Sunfiber® is associated with a more gradual fermentation profile and lower viscosity, contributing to excellent tolerability.*
- Ferments more gradually in the gut
- Low viscosity supports digestive comfort
- Studied in individuals prone to gas and bloating
- Suitable for daily use across a wide range of individuals for prolonged periods
SHORT-CHAIN FATTY ACID (SCFA) PRODUCTION
Produces key metabolites that support gut function.
When fermented, Sunfiber® contributes to the production of short-chain fatty acids such as butyrate, acetate, and propionate, which play an important role in supporting gut health.*
- SCFAs serve as an energy source for colon cells
- Help support intestinal barrier function*
- Associated with healthy digestive system
- Produced naturally during fermentation of soluble fibers
CLINICAL
FOUNDATION
Supported by decades of research and human clinical studies.
Sunfiber® has been evaluated in numerous published studies designed to assess its effects on digestive function, gut microbiota, and metabolic outcomes.
- Studied in healthy adults and individuals with digestive sensitivity (e.g., IBS-C)
- Demonstrates consistent safety and tolerability across trials
- Evaluated in both short-term and longer-duration studies
- Supported by peer-reviewed clinical research
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Health Benefit Areas
EXTENSIVE RESEARCH FOOTPRINT
One of the most thoroughly studied soluble fibers available.
Sunfiber’s research portfolio includes:
180+ peer-reviewed publications
Studies across digestive health, microbiome, and metabolic function
Research conducted in diverse adult and child populations
Decades of continuous scientific investigation
This depth of research supports its use across both consumer and clinical nutrition applications.
WHY THE SCIENCE MATTERS
Translating research into real-world formulation performance.
The scientific foundation behind Sunfiber® supports not only its physiological effects, but also its practical application across a wide range of products.
Consistent, reproducible outcomes across studies
Well tolerated across different populations
Suitable for daily, long-term use
Supported by both vast amounts of clinical data and functional performance