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Nutrition

Bone Broth for Hair Loss: What the Science Actually Says

the Osso Kitchen7 min read
Back view of a woman with long, healthy shiny brown hair — bone broth and hair loss

Hair loss is one of the most universal concerns — and one of the hardest to address. Bone broth is frequently presented as a natural solution. But what does the science actually say?

This guide gives you an honest answer: what bone broth can do for your hair, what it can't, and which causes of hair loss it's most relevant for.

Does Bone Broth Actually Make Hair Grow?

The short answer: not directly.

There is no clinical study demonstrating that bone broth alone stimulates hair growth or stops hair loss. As Bluebird Provisions notes: "while some evidence implies potential hair growth benefits from bone broth, there's no definitive scientific studies testing bone broth directly."

But here's what the science does say: bone broth provides the nutrients that constitute the building blocks of your hair. And that's already a solid foundation.

Why Bone Broth Is Relevant for Hair Health

Collagen as a keratin precursor

Hair is made up of 95% keratin — a structural protein. Keratin is itself synthesised from amino acids, notably glycine and proline, which the body obtains by breaking down dietary collagen.

According to dermatologists cited by Aventus Clinic, "the body uses the amino acids from ingested collagen to create new proteins, including those that form hair." Glycine and proline are particularly useful for building new connective tissues — potentially including the hair follicle.

Glycine as an antioxidant

Free radicals damage hair follicles and accelerate capillary ageing. The collagen in bone broth stimulates the production of glutathione — the body's master antioxidant — which protects follicles from oxidative damage. It may also protect melanin-producing cells within follicles, helping preserve natural hair colour.

Gut health as a foundation

Lean Greens notes that "gut health acts as the gatekeeper for collagen absorption." If the gut is in poor condition, the nutrients required by hair follicles aren't absorbed efficiently. The glutamine and gelatin in bone broth support gut wall integrity — improving absorption of all hair nutrients, not just collagen.

Essential minerals

Zinc, sulphur and silicon — present in bone broth — are essential cofactors for keratin synthesis and the hair follicle growth cycle. Zinc deficiency is one of the most common nutritional causes of hair loss.

By Cause of Hair Loss: What Bone Broth Can Offer

Postpartum hair loss

Postpartum hair loss (telogen effluvium) is triggered by the sharp drop in hormones after birth. It's inevitable — but its intensity and duration can be mitigated.

Bone broth is particularly relevant here: it replenishes mineral reserves depleted by pregnancy and breastfeeding, provides the amino acids needed to restart the hair growth cycle, and supports the body's overall recovery. As we explain in our postpartum guide →, glycine makes up approximately 57% of the total amino acids in collagen — directly supporting the hair follicle growth cycle.

Menopause-related hair loss

The drop in oestrogen at menopause weakens the hair follicle and shortens the hair growth phase. Bone broth supports two compensatory mechanisms: supplying keratin precursors (glycine, proline) and reducing systemic inflammation that worsens hormonal hair loss. Read our complete bone broth and menopause guide →

Stress-related hair loss

Chronic stress is one of the most common causes of diffuse hair loss. The glycine in bone broth plays a documented role in cortisol regulation. By supporting nervous system calm, it can indirectly reduce stress's impact on the hair cycle.

Nutritional deficiency hair loss

This is where bone broth is most directly relevant. If your hair loss is linked to deficiency in protein, zinc, glycine or proline — common in restrictive or vegetarian diets — bone broth provides precisely these missing nutrients.

What Bone Broth Cannot Do for Your Hair

Stop androgenetic alopecia

Androgenetic alopecia (male or female pattern baldness) is caused by follicle sensitivity to DHT — an androgenic hormone. No food, including bone broth, can block this hormonal mechanism. Medical treatments (minoxidil, finasteride) remain indicated.

Replace medical treatment

If your hair loss is severe, sudden or accompanied by other symptoms, consult a dermatologist. Bone broth is nutritional support, not medical treatment.

Produce immediate results

The hair cycle lasts 3 to 6 months. The effects of nutritional supplementation on hair manifest at best after 3 months of regular consumption. Patience is essential.

How to Integrate Bone Broth for Hair Health

The winning combination: bone broth + vitamin C

Vitamin C is essential for the body's collagen synthesis. According to Aventus Clinic, "consuming brightly coloured fruits and vegetables high in vitamin C can aid in natural collagen production." A cup of bone broth paired with a vitamin C source (citrus fruits, bell peppers, kiwi) optimises collagen synthesis and therefore the availability of keratin precursors.

Consistency above all

One cup per day, every day, for at least 3 months — that's the condition for observing an effect on the hair cycle. Occasional intake has no documented effect.

In cooking

Used as a base for soup, risotto or sauce, bone broth integrates into any meal. Amino acids and minerals transfer fully into the dish. 7 ways to use bone broth daily →

This information is for educational purposes only and does not replace advice from your doctor or dermatologist.

Frequently asked questions

How long before seeing an effect on hair?
The hair cycle lasts 3 to 6 months. The first effects of nutritional supplementation on hair quality and density are generally visible after 3 months of daily consumption.
Does bone broth help with postpartum hair loss?
It doesn't stop the hormonal postpartum hair loss — but it replenishes the nutritional reserves depleted by pregnancy and supports the restart of the hair growth cycle.
What's the difference between bone broth and biotin supplements for hair?
Biotin specifically supports keratin synthesis. Bone broth provides the precursor amino acids (glycine, proline) and cofactor minerals (zinc, sulphur). Both are complementary — bone broth acts further upstream in the synthesis chain.
Does bone broth also help nails?
Yes — nails are also made of keratin and benefit from the same mechanisms as hair.
Can you drink bone broth every day?
Yes — it's even recommended for hair health. One cup per day, every day, for at least 3 months is the condition for observing an effect on the hair cycle.

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