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Bone Broth Research

Mostly mechanism / observationalModerate safety

4 peer-reviewed studies

What the evidence says

Mostly mechanism / observational

Most Bone Broth studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.

Most evidence is from mixed-quality studies published 2013–2025.

Based on 4 studies

Confidence

Very low

By outcome

Digestive healthGlycine and glutamine may support the gut barrier (animal-model and mechanistic evidence only) · Unknown
Too few graded studies1 study

Active research area

2 studies in the last 5 years

201320192025

1In Vitro2019

It is unlikely that bone broth can provide a consistently reliable source of key amino acids for collagen synthesis.

Alcock RD, Shaw GC, Burke LM. · Int J Sport Nutr Exerc Metab (2019)

Collagen amino acids (glycine, proline, hydroxyproline) in standardized bone broth were significantly lower than in supplemental collagen sources used in collagen research
Non-standardized broth recipes varied widely in amino-acid content
Bone broth is an unreliable delivery vehicle for collagen precursors

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2Observational2013

Bone broths contained several times the lead concentration of the water with which the broth was made.

Monro JA, Leon R, Puri BK. · Med Hypotheses (2013)

A small blinded, controlled study found chicken bone broths had markedly higher lead than the source tap water (up to 9.5 vs 0.89 ug/L)
Bones sequester environmental lead, which can be mobilized into broth
Authors recommend clinicians weigh lead-contamination risk when advising bone broth

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3Animal2021

Prophylactic administration of bone broth reduced histological damage and inflammatory cytokine expression in a mouse model of ulcerative colitis.

Mar-Solís LM, Soto-Domínguez A, Rodríguez-Tovar LE, et al. · Medicina (Kaunas) (2021)

Bone broth (mainly essential amino acids) reduced colon damage and pro-inflammatory cytokines (IL-1B, IL-6, TNF-a) in mice
Increased anti-inflammatory cytokines IL-4 and IL-10
Suggests a plausible gut anti-inflammatory mechanism

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4Review2025

The benefits documented for components in bone broth support gut health, but the review aims to encourage further research rather than confirm efficacy.

Matar A, Abdelnaem N, Camilleri M. · Dig Dis Sci (2025)

Reviews bone broth's amino acids (glutamine, glycine, proline) and minerals as potentially supportive of intestinal barrier function
Evidence base is drawn from component studies and animal/human work on the constituents, not trials of bone broth itself
Explicitly calls for further research to substantiate the claims

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View in Research Library

Bone Broth Research

Mostly mechanism / observational

Bone Broth Unlikely to Provide Reliable Concentrations of Collagen Precursors Compared With Supplemental Sources of Collagen Used in Collagen Research.

The risk of lead contamination in bone broth diets.

Analysis of the Anti-Inflammatory Capacity of Bone Broth in a Murine Model of Ulcerative Colitis.

Bone Broth Benefits: How Its Nutrients Fortify Gut Barrier in Health and Disease.