If you've been exploring natural ways to support your fertility, you've probably come across bone broth. It shows up in fertility forums, naturopathic recommendations, and Traditional Chinese Medicine — often with glowing promises attached.

But does it actually help? And if so, how?

The honest answer is: there's no direct clinical trial proving that bone broth boosts conception rates. But that doesn't mean it's without value. Used thoughtfully as part of a wider approach — alongside fertility acupuncture in Middlesbrough and a nourishing diet — bone broth can support several of the underlying systems that reproductive health depends on. And that matters.

Let me walk you through what we actually know, and where the traditional wisdom and modern science genuinely align.

Bone broth has been used as a nourishing, restorative food across cultures for centuries, and its nutritional profile has genuine relevance to reproductive health

What Is Bone Broth, and Why Does It Come Up in Fertility Conversations?

Bone broth is made by simmering animal bones (chicken, beef, or fish) for an extended period, often 12 to 24 hours, with water, vegetables, and a small amount of acid (usually apple cider vinegar). The long, slow cook draws collagen, gelatin, amino acids, and minerals out of the bones and into the liquid.

It's been used medicinally across cultures for centuries. In Traditional Chinese Medicine it's considered deeply nourishing, a food that builds essence and blood. In Western nutritional therapy it's valued for its gut-supporting properties. It's not a trend. It's a very old food that's found a new audience.

The reason it appears in fertility conversations is that reproductive health is intimately connected to several systems that bone broth genuinely supports: gut health, hormonal regulation, inflammation levels, and uterine tissue quality. None of these exist in isolation. Improve them collectively, and you're building a better foundation for conception.

The Nutritional Case for Bone Broth and Fertility

Collagen and Gelatin

Collagen is the most abundant structural protein in the human body. When simmered, it breaks down into gelatin, which is what gives a good bone broth its distinctive jelly-like consistency when cooled. That texture is a sign of quality.

Collagen supports the integrity of the uterine lining, which matters for implantation. It also supports gut lining health, with a downstream effect on nutrient absorption. If your gut lining is compromised (sometimes called "leaky gut") you may be absorbing less of the nutrients your body needs to sustain reproductive function, regardless of how well you eat.

Amino Acids: Glycine and Proline

Bone broth is particularly rich in glycine and proline, two amino acids that aren't always well-represented in modern diets. Glycine has been studied for its role in supporting sleep quality, reducing inflammation, and protecting liver function. Proline is essential for tissue repair and collagen synthesis.

What's particularly interesting from a fertility perspective is that glycine appears to become what researchers call "conditionally essential" in late pregnancy, meaning the body's own production can't fully meet demand and dietary sources matter more than usual. Studies suggest glycine plays important roles in fetal growth, placental function, and antioxidant defences during early development. This gives bone broth, as one of the richest dietary sources of glycine, a genuinely relevant place in preconception nutrition.

Glycine is also involved in glucose regulation and one-carbon metabolism, which links it to insulin sensitivity and methylation. Both are relevant to PCOS, egg quality, and early embryonic development. For women with PCOS in particular, where insulin resistance is a common underlying factor, including glycine-rich foods as part of an anti-inflammatory diet is a quietly sensible move.

Both glycine and proline contribute to a more stable internal environment: reduced systemic stress, better tissue integrity, lower background inflammation. Quiet, foundational contributions rather than dramatic interventions.

Minerals — An Honest Note

Bone broth contains calcium, magnesium, phosphorus, and in beef bone broth made with marrow bones, meaningful amounts of zinc and iron too. These minerals are involved in hormone production, egg quality, and cycle regulation, and the apple cider vinegar used in preparation helps draw them out of the bones.

It's worth being honest here though: the actual mineral amounts per cup are often more modest than popular claims suggest, typically providing less than 5% of daily values unless vegetables are added and cooking times are long. Bone broth is a useful mineral contributor, but it shouldn't be relied on as a primary source. Think of it as one thread in a wider nutritional picture that also includes leafy greens, seeds, and quality protein sources.

Gut Health

This is arguably where bone broth has its strongest evidence base. The gelatin in bone broth helps repair and maintain the gut lining. A well-functioning gut absorbs nutrients more efficiently, regulates inflammation more effectively, and supports healthy hormone metabolism.

Oestrogen in particular is processed through the digestive system. Glycine and glutamine from bone broth both support liver detoxification pathways, including the phase II conjugation processes through which the liver clears excess oestrogen. For women with oestrogen dominance, heavy periods, or conditions like endometriosis, this gut-liver connection is more than academic. It's one of the more mechanistically coherent reasons to include bone broth in a hormone-balancing approach.

What Traditional Chinese Medicine Says About Bone Broth

In TCM, fertility is understood through the lens of Kidney Jing, a kind of constitutional essence that governs reproductive capacity, ageing, and vitality. Jing is finite, drawn on throughout life, and can be depleted by chronic stress, overwork, poor sleep, and inadequate nourishment.

Bone broth is considered a Jing-nourishing food. Bones, in TCM, correspond to the Kidney system. Slow-cooking them draws out their deepest essence — literally and philosophically — and the resulting broth is seen as deeply restorative for the reproductive system.

Bone broth is also categorised as a Blood-building food in TCM. Blood, in this framework, refers not only to the physical substance but to the nourishment it carries — to the uterus, to the organs, to the whole system. Women who are depleted, cold, or pale in TCM terms are often encouraged to eat warm, blood-building foods as a foundation for fertility support. Bone broth fits naturally into that approach.

At our fertility acupuncture clinic in Middlesbrough, I often discuss diet with patients as part of a holistic picture. For those with signs of Kidney deficiency or Blood deficiency in TCM terms, bone broth is one of the simplest, most accessible dietary additions we talk about.

Chicken or Beef: Which Is Better for Fertility?

Both are valuable, and the differences are worth knowing so you can choose based on your own constitution and needs.

Chicken Bone Broth

• Higher in collagen. Particularly from the feet and carcass, which are rich in connective tissue.
• Lighter and easier to digest. Better if you have a sensitive stomach or tend towards heat signs in TCM.
• Milder flavour. Easier to drink on its own or add to soups and grains.

Beef Bone Broth

• Richer in minerals. Particularly if you use marrow bones, where zinc and iron content is notably higher.
• Deeper, more warming quality. In TCM terms, more strongly tonifying for Kidney Yang.
• Higher in amino acids overall. The denser composition reflects the larger, denser bones used.

Alternating between the two across the week means you benefit from the full nutritional range of both. There's no single right answer. It comes down to what you enjoy and tolerate well.

How to Make a Good Fertility Bone Broth

Store-bought bone broth varies enormously in quality. Many commercial versions don't simmer long enough to extract meaningful gelatin, and some contain additives that undermine the nutritional value. Making your own is straightforward and significantly more effective.

How to Use Bone Broth as Part of Your Fertility Routine

The most sustainable approach is to make bone broth a quiet daily habit rather than a supplement you take in concentrated doses.

• Sip a cup daily. Warm, with a pinch of sea salt, first thing in the morning or in the evening. Simple and consistent.
• Use it as a cooking base. Swap water for bone broth when cooking grains like rice or quinoa, or as the base for soups and stews.
• Batch and freeze. Make a large pot every couple of weeks and freeze in portions. Takes the effort out of daily preparation.
• Around your cycle. In TCM, the post-menstrual phase and the week before ovulation are particularly good times to focus on blood-building, nourishing foods. Including bone broth more intentionally during these windows aligns with the cyclical approach to fertility nutrition.

What Bone Broth Won't Do

It's worth being clear about this. Bone broth is a nourishing, genuinely supportive food. It is not a fertility treatment.

It won't resolve structural issues like blocked tubes or significant endometriosis. It won't correct a substantial hormonal imbalance on its own. It won't compensate for chronic sleep deprivation, high stress, or other significant lifestyle factors affecting your fertility.

That's not a reason to dismiss it. It's a reason to position it correctly. As one layer of a thoughtful, holistic approach, it earns its place. As a standalone solution, it will always fall short of the expectations placed on it.

If you're working with fertility challenges, professional support matters. Whether that's working with your GP, a fertility specialist, or exploring complementary approaches like acupuncture for fertility support, having guidance tailored to your specific situation is always going to serve you better than any single food or supplement.

A Few Things Worth Knowing

Because I think honest information matters more than an uncritical sell, a couple of things are worth mentioning.

Histamine sensitivity. Bone broth is naturally high in histamine, produced during the long simmering of animal tissues. For most people this isn't an issue. But if you tend to react to fermented foods, aged cheeses, or wine with headaches, flushing, or digestive upset, you may have histamine intolerance and it's worth being aware of before making bone broth a daily habit.

There's an interesting nuance here for those trying to conceive: pregnancy itself is associated with increased activity of diamine oxidase (DAO), the main enzyme the body uses to break down histamine. Observational research in women with histamine intolerance found that DAO levels rose significantly during pregnancy, and symptoms often improved — then worsened again postpartum as DAO activity fell. This means that for most women, tolerance to bone broth may actually improve once pregnant. That said, some research links elevated histamine to early pregnancy complications, so if you have a history of recurrent miscarriage or known histamine intolerance, it's worth getting personalised guidance before going large on bone broth consumption.

Practically: shorter cooking times, very fresh bones, and rapid cooling and freezing all help reduce histamine load if you know you're sensitive.

Lead. A small study found that long-simmered bone broths contained higher lead levels than tap water, because lead can accumulate in animal bones and leach into broth during extended cooking. The concentrations measured were still in the low range, but if you're drinking bone broth daily in large amounts, sourcing organic or pasture-raised bones reduces your exposure meaningfully. Again, this is a reason to source well, not a reason to avoid it altogether.

It's not a complete protein. Bone broth is relatively low in branched-chain amino acids and shouldn't replace higher-quality protein sources like eggs, fish, meat, or dairy. It complements them rather than substituting for them.

It's not suitable for everyone. Bone broth is made from animal bones and isn't appropriate for vegetarian or vegan readers. If that's you, the same gut-supporting and nourishing goals can be approached through mineral-rich vegetable and seaweed broths, alongside collagen-supportive nutrients: vitamin C, proline from legumes, and glycine from certain plant proteins. The underlying principle (deeply nourishing, easily digestible, mineral-rich food as a daily habit) translates across dietary approaches even if bone broth itself doesn't.

Wellness grows where energy flows.