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Bone Broth
A traditional simmered-bone stock rich in collagen-derived amino acids (glycine, proline, hydroxyproline) and some minerals, popular for joint, gut and skin health. Human efficacy data is essentially absent — the evidence is compositional and animal-model only — and the amino-acid content is inconsistent, with a real lead-contamination concern.
What the evidence says
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 lowBy outcome
Bone Broth has an evidence score of 2/10 — emerging evidence based on 4 indexed studies. A traditional simmered-bone stock rich in collagen-derived amino acids (glycine, proline, hydroxyproline) and some minerals, popular for joint, gut and skin health. Human efficacy data is essentially absent — the evidence is compositional and animal-model only — and the amino-acid content is inconsistent, with a real lead-contamination concern. Representative study: PMID 29893587.
The commonly studied dose of Bone Broth is Commonly 1-2 cups (~240-500 ml) daily as a food; no validated therapeutic dose and amino-acid content is inconsistent. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
Explore: Best supplements for Body Health
Last reviewed June 2026 · evidence from 4 studies · how we score
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Bone broth is made by simmering animal bones, cartilage and connective tissue for hours, extracting gelatin (denatured collagen), the amino acids glycine, proline and hydroxyproline, and modest amounts of minerals. It is marketed for joint pain, gut-barrier health, skin and recovery — claims that lean on the building-block logic that collagen-derived amino acids support the body's own collagen synthesis. The honest assessment: there are essentially no human clinical trials of bone broth itself for any of these outcomes. The supporting evidence is (1) compositional analyses of what is in the broth, (2) animal models (e.g. anti-inflammatory effects in mouse colitis), and (3) extrapolation from separate research on standardized collagen-peptide supplements. Importantly, a controlled analysis found that bone broth provides far lower and far more variable amounts of key collagen amino acids than the doses used in collagen research — so even if collagen precursors help, broth is an unreliable way to deliver them. There is also a documented contamination concern: because bones sequester lead, a small controlled study found bone broths contained several times the lead concentration of the water used to make them. Bone broth is a perfectly fine nourishing food; as a targeted 'supplement' for joints, gut or skin, the evidence simply isn't there yet.
Supplies glycine, proline and hydroxyproline — building blocks for the body's collagen — though at inconsistent and relatively low amounts.
Glycine, glutamine and other amino acids are substrates for intestinal cells; proposed to support gut-barrier integrity (animal/mechanistic data).
In a mouse colitis model, bone broth reduced inflammatory cytokine expression — not yet shown in humans.
How Bone Broth works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Tap node to isolate • Pinch to zoom • Tap edge for research
Commonly 1-2 cups (~240-500 ml) daily as a food; no validated therapeutic dose and amino-acid content is inconsistent
Can be taken without food
| Form | Type |
|---|---|
| 💊Homemade bone broth from a known source | Recommended |
| 💊Standardized collagen-peptide supplement (for reliable collagen amino acids) | Alternative |
If the goal is collagen precursors, a standardized collagen supplement delivers them far more reliably.
Minimum: 4 weeks
Optimal: 12 weeks
Cycling: Not required
Note: No validated timing.
Dose-response data unavailable. The current published research for Bone Broth does not provide sufficient dose-specific outcome data to generate reliable dose-response curves.
Refer to the Dosage & Timing section above for recommended dose ranges based on available evidence.
Amino acids may support the intestinal barrier; demonstrated in animal models, not human trials.
Amino-acid content varies widely between batches and is lower than the doses used in collagen research.
There are essentially no human clinical trials of bone broth for joints, gut or skin.
Generally fine as a food in moderation; be mindful of the lead-contamination concern and use trusted bone sources.
Moderation advised given the lead-contamination concern, as children are more vulnerable to lead.
Choose low-sodium broth and account for the salt load.
No clinically significant drug interactions are established for bone broth itself.
Tip: Use bones from a trusted source; vary protein sources rather than relying on broth daily
Tip: Use shorter simmer times or avoid if histamine-intolerant
Tip: Choose low-sodium products if restricting salt
Both supply collagen-derived amino acids; standardized collagen peptides deliver them at consistent, research-backed doses that bone broth cannot reliably match.
If collagen precursors are the goal, a standardized collagen supplement is the more reliable choice; broth adds amino acids inconsistently.
Both are marketed for joint health via different building-block rationales.
Complementary joint-support angles, though bone broth's joint evidence is essentially nonexistent in humans.
Timing is flexible for Bone Broth — consistent daily use matters more than the time of day. Consumed as a food/beverage; no timing has been validated against any clinical outcome.
Bone Broth is generally safe at recommended doses, with a few precautions worth noting. The most commonly reported side effects are lead exposure from contaminated bones, histamine reactions (flushing, headache) in sensitive people, high sodium (commercial broths). Use caution if any of these apply to you: Histamine intolerance (long-simmered broth is high in histamine).
Hydrolyzed peptides that rebuild skin elasticity, reduce joint pain, and strengthen bone density — results build over 8-12 weeks.