Bone broth contains amino acids and minerals that are present in the gut and may influence intestinal barrier function and inflammatory responses.
Mechanism
Synthesis from 1 study
The nutrients in bone broth are absorbed by the gut and directly strengthen the seals between its lining cells. They also turn off inflammatory signals and help repair damaged tissue, preventing leaks and reducing swelling in the intestinal wall.
Most probable mechanism
Amino acids and minerals from bone broth are absorbed in the gut, where they strengthen the tight seals between gut lining cells, repair damaged tissue, and calm down immune activity to prevent inflammation.
Glutamine, arginine, glycine, proline, and hydroxyproline are absorbed by intestinal epithelial cells and immune cells in the gut mucosa.
Glutamine fuels enterocyte metabolism, activates mTOR signaling, and increases synthesis of tight junction proteins including occludin, claudins, and ZO-1.
Zinc binds to metal-responsive transcription factor 1, which triggers gene expression of tight junction proteins and enhances epithelial resistance to oxidative stress.
Proline and hydroxyproline are incorporated into collagen and extracellular matrix proteins, stabilizing the lamina propria and supporting epithelial restitution.
Arginine is converted to nitric oxide by endothelial nitric oxide synthase, increasing mucosal blood flow and reducing leukocyte adhesion.
Glycine activates glycine-gated chloride channels on immune cells, causing membrane hyperpolarization that inhibits NLRP3 inflammasome and NF-kB signaling.
Nitric oxide and glycine signaling together suppress production of TNF-alpha, IL-6, and IL-1beta, reducing mucosal inflammation.
Zinc further inhibits NF-kB activation and reduces oxidative damage to epithelial cells.
Tight junction proteins seal paracellular spaces, collagen reinforces structural integrity, and suppressed inflammation prevents barrier disruption.
Evidence from Studies
Supporting (1)
Community contributions welcome
Bone Broth Benefits: How Its Nutrients Fortify Gut Barrier in Health and Disease
Contradicting (0)
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Gold Standard Evidence Needed
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