Supplement analysis backed by scientific evidence · PT

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Limited evidenceGut health

Bone Broth Protein

"Bone broth protein" powder is spray-dried hydrolyzed collagen with broth flavoring — a low-quality protein sold at a premium on gut-healing claims that have never been tested in a human trial.

What the science says

  • Heals the gut lining / seals leaky gut Limited evidence

    The rationale is that glycine, glutamine and gelatin support intestinal barrier function, and a 2025 review summarizes the mechanistic and animal data behind it. But there is no randomized controlled trial of bone broth or bone broth protein powder for intestinal permeability, IBS or IBD in humans. The claim is entirely extrapolated from cell and rodent work.

  • A high-quality protein source Limited evidence

    Collagen-based protein contains no tryptophan and little leucine, so its protein quality score sits at the bottom of the range — roughly a third to a half that of whey by DIAAS. A 20 g serving will not support muscle protein synthesis the way 20 g of whey, casein or soy does, and label "protein" figures based on nitrogen content overstate its usefulness.

  • Rich in minerals from the bones Limited evidence

    Analyses of home-made and commercial broths consistently find calcium and magnesium in the low tens of milligrams per cup — a few percent of daily needs — because bone mineral does not dissolve appreciably at cooking temperatures. Long-simmered bone preparations also leach lead: one analysis of organic chicken bone broth found concentrations up to about 9.5 mcg/L versus 0.89 mcg/L in the tap water used to make it.

  • Superior to plain collagen peptides Limited evidence

    Compositionally these products are hydrolyzed collagen, often from the same hide and bone raw material, plus flavorings and sometimes added vegetable powders. No study has compared bone broth protein against equivalent collagen peptides on any outcome, and the price per gram of protein is usually higher.

Dosage & safety

Studied doseTypical label serving is 20 g powder providing roughly 15-20 g of collagen protein. Collagen-peptide trials that showed skin or joint effects used 2.5-10 g/day, so a standard scoop exceeds those doses — the limitation is not the amount but the absence of evidence for the broth-specific claims. For actual muscle-protein purposes, use a complete protein and treat this as an add-on.
SafetyWell tolerated; bloating and GI heaviness are common at 20 g+. Lead and cadmium accumulation from bone-derived raw materials is a documented concern with long-simmered bone preparations — choose third-party tested brands and do not use it as a sole daily protein for children or in pregnancy. Contains histamine and glutamate, which can trigger symptoms in histamine-intolerant or migraine-prone people. Not a complete protein; do not substitute it for dietary protein. Sodium content in flavored versions can reach 300-500 mg per serving.

Scientific references

Where to buy

Ancient Nutrition, Bone Broth Protein, Pure, 15.7 oz(446 g)

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