The Role of Polyphenols in Respiratory and Gut Health: From the Perspective of Gut-Lung Axis.
Kang J, Du Y, Hou Y, Hao L, Chen Z
Medicinal Plants
The elderberries, rosehips, and culinary herbs you grow out back are quietly stocking your gut with compounds that researchers now believe also protect your lungs from inflammation.
Your gut and lungs are in constant communication, and the bacteria living in your digestive system can actually influence whether your lungs become inflamed or stay healthy. Plant compounds called polyphenols—found in colorful fruits, vegetables, tea, and herbs—help keep that gut-lung conversation balanced by feeding good bacteria and dialing down overactive immune responses. This review pulls together the latest science showing that a plant-forward diet isn't just good for digestion; it may be one of the best tools we have for protecting respiratory health too.
Key Findings
The gut and lungs form a bidirectional feedback loop: gut microbiota shifts drive pulmonary inflammation, and lung disturbances can in turn reshape gut microbial communities.
Polyphenols modulate this gut-lung axis through three overlapping mechanisms: reshaping microbial communities in both organs, regulating oxidative stress (redox homeostasis), and tuning immune responses.
Key knowledge gaps identified include optimal polyphenol dosing and combination strategies, which must be resolved before polyphenols can move from dietary recommendation to targeted therapeutic use.
chevron_right Technical Summary
Eating plant-rich foods loaded with polyphenols—compounds found in berries, tea, herbs, and vegetables—can improve both gut and lung health by shaping beneficial gut bacteria and calming inflammation across both organ systems.
Abstract Preview
The gut-lung axis constitutes a dynamic, multidirectional communication platform between the gastrointestinal and respiratory tracts. Its complexity arises from the integrated crosstalk among the m...
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