Evidence supporting the use of: Polyphenols (mixed)
For the body system: Small Intestines

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Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Polyphenols, a broad class of naturally occurring compounds found in plants (such as flavonoids, phenolic acids, and lignans), have received growing scientific attention for their effects on the gastrointestinal tract, including the small intestine. Research indicates that polyphenols can influence gut health through several mechanisms: they exhibit antioxidant properties, modulate inflammatory responses, and interact with the gut microbiota. Multiple studies have demonstrated that polyphenols can help maintain the integrity of the intestinal barrier, reduce oxidative stress, and potentially protect against inflammation-induced damage in the small intestine. For example, certain polyphenols have been shown in animal and cell models to support tight junction proteins and reduce intestinal permeability ("leaky gut"). Additionally, polyphenols can selectively promote the growth of beneficial bacteria while inhibiting pathogens, indirectly supporting small intestinal health. However, most clinical evidence is preliminary, and much of the data are derived from in vitro or animal studies rather than large-scale human trials. While the mechanistic rationale is strong and the body of research is expanding, more robust human clinical trials are needed to confirm these benefits specifically for the small intestine. Overall, there is scientific basis for the use of polyphenols to support small intestinal health, but the evidence is moderate rather than conclusive at this time.

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Products containing Polyphenols (mixed)

We currently have no products on Vitabase that contain this ingredient.