Bone Broth: The Original Superfood

That intuition was correct. And the science now confirms why.

What bone broth actually is

Bone broth is the result of simmering animal bones, connective tissue, and sometimes vegetables in water for an extended period. Usually 12 to 48 hours. The low, gentle heat breaks down collagen in the bones into gelatin and individual amino acids. Minerals leach from the bone matrix into the liquid. Compounds from the bone marrow and connective tissue dissolve into solution.

What you end up with isn't just flavoured water. It's a concentrate of bioavailable nutrients that your body can use immediately.

Real bone broth sets in the fridge. It gels. That gel is collagen that's been broken down into gelatin, and it carries with it glycine, proline, glutamine, and dozens of other compounds that your body recognises and uses for tissue repair, immune function, and inflammation management.

Bone broth is liquid nutrient density. It's what happens when you take the most mineral-rich, connective tissue-rich parts of an animal and extract everything valuable into a form your body can absorb and use.

Why every culture understood this

Chinese medicine has used bone broth as medicine for over 2,000 years. Jewish cultures have used bone marrow broth for centuries. In French culinary tradition, stock made from bones is the foundation of every sauce. In Korea, broth is as essential to a meal as rice. In traditional German and English cooking, meat was roasted and the bones were simmered for broth. This wasn't accident or culture preference. It was nutritional necessity.

Across traditional diets where modern diseases were rare, bone broth appeared consistently. Not as an afterthought. As a staple. That pattern matters.

Every culture that valued health understood that you don't waste the bones. You extract their nutrition into a form the body can use. And then you consume that broth regularly.

That's the opposite of modern food culture, which simmers bones briefly, strains them out, and throws them away. Modern food culture sees bones as waste. Ancestral food culture saw them as medicine.

The nutrient profile that changed how we heal

When you simmer bones properly, you extract compounds that your body uses for specific purposes. Let's name them clearly.

Collagen and gelatin. Collagen is the most abundant protein in your body. It's found in your skin, joints, connective tissue, and the lining of your digestive system. When you break collagen down into gelatin through heat, you create a form your body can absorb and use to rebuild collagen in those same tissues. A cup of bone broth delivers more bioavailable collagen than a bottle of collagen supplement ever will.

Glycine. One of the amino acids that makes up collagen. Glycine is essential for the synthesis of glutathione, an important intracellular antioxidant.¹ It's needed for immune function, sleep quality, and joint repair. Most people are deficient in glycine because modern diets exclude the foods that carry it: gelatinous meats, bone broth, skin.

Proline. Another collagen amino acid. Proline supports skin elasticity, joint function, and vascular health. It works alongside vitamin C, a required cofactor for prolyl and lysyl hydroxylase enzymes in collagen synthesis.² If you're supplementing vitamin C but not consuming proline-rich foods, you're missing half the equation.

Glutamine. Glutamine is a major fuel source for enterocytes lining the small intestine.³ A damaged gut lining, whether from infection, chronic stress, or inflammatory food, needs glutamine to repair. Bone broth is one of the few whole food sources of meaningful glutamine quantities.

Minerals. Calcium, magnesium, phosphorus, and dozens of trace minerals leach into the broth water. But here's what matters: they're not just present. They're in a ratio and form that your body recognises. That bioavailability is why traditional peoples relied on bone broth for mineral intake, not mineral supplements.

A single cup of bone broth delivers compounds that your body is actively trying to source from food. You don't need to understand the biochemistry. You just need to consume it regularly.

What breaks down in the broth

The longer you simmer bones, the more compounds dissolve into the liquid. At 12 hours, you've extracted substantial gelatin and minerals. At 24 hours, you've released more amino acids and compounds from the marrow. At 48 hours, the broth becomes increasingly nutrient-dense.

Different bones carry different nutritional profiles. Beef knuckle bones and marrow bones are rich in collagen and marrow fat. Chicken bones carry more of certain minerals. Fish bones provide iodine and selenium that land animals don't. A rotating variety of bone broths gives you the broadest spectrum of nutrition.

The vegetables and herbs you add aren't just for flavour. Onion, carrot, celery, and bay leaf add their own minerals and compounds to the broth. A mirepoix of these vegetables, simmered with bones, creates a broth that's greater than the sum of its parts.

How to make it properly

Place bones (or a mix of bones) in a large pot. Cover with cold water. Add a splash of vinegar to help extract minerals. Bring to a boil, then immediately reduce to the lowest simmer.

Skim the grey foam that rises in the first few minutes. This is just denatured protein and won't hurt you, but removing it gives a cleaner broth. After 30 minutes, add roughly chopped vegetables: onion, carrot, celery, and a bay leaf or two.

Let it simmer gently for 12 to 48 hours, depending on your schedule. The longer the better. Taste it periodically. When it tastes rich and full, it's ready. Strain out the solids through a fine sieve or cloth, and you're left with liquid nutrition.

Store in glass jars. Real bone broth will gel in the fridge due to the collagen content. That gel is a visible sign that you've extracted something valuable. The fat that rises to the top is nutrient-dense lard you can cook with.

The most common mistake is not simmering long enough, not using enough bones, or adding too much water. A good broth should taste meaty and rich, not watered down. If you're in doubt, you haven't simmered long enough.

The cost and the quality

One of the most striking things about bone broth is the cost-benefit ratio. A kilogram of bones costs almost nothing. Often, if you ask a butcher, they'll give them to you free. Those bones, simmered for 24 hours, yield weeks of nutrition. A single batch can produce 3 to 4 litres of broth.

Compare that to collagen supplements, which run £20-40 per month and deliver a fraction of the nutritional complexity of real broth. Or to joint supplements that attempt to replicate what bone broth does naturally. Or to the dozens of foods and powders people buy trying to support skin, gut, and connective tissue health when one thing would do it all.

This is why bone broth was the foundation of traditional nutrition. Not because it was trendy or expensive, but because it was cheap, accessible, and more effective than anything modern science can synthesise.

The ritual of making it

There's something valuable about making bone broth yourself. You see the bones. You smell them simmering. You watch the liquid turn golden. You feel the gel set in the fridge. That sensory engagement connects you to the food in a way that buying pre-made broth never will.

You remember that this came from an animal. That the bones you're using supported a living creature. That you're extracting nutrition that was always meant to be used. That's not sentimental. That's the opposite of how modern food culture works, where everything is pre-packaged and disconnected from its source.

Making broth is simple enough for a child but requires patience. You can't rush it. You can't buy it in a pill. You have to commit to the time and the process. In a world obsessed with quick fixes, that commitment is itself medicine.

The bottom line

Bone broth is called a superfood because the label is earned. It delivers collagen, amino acids, minerals, and compounds in forms your body recognises and uses. Every traditional culture that lived well understood this. Modern food culture forgot it and replaced it with supplements that deliver a fraction of what real broth does.

If you're struggling with joint pain, skin quality, gut healing, or just want to optimise your nutrient intake, a cup of bone broth daily is one of the single most powerful nutritional interventions available to you. It costs almost nothing, tastes like comfort, and delivers nutrition that science is still catching up with.

Start making it this week. Your joints will thank you.

References

1. 1. Wu G, et al. Glutathione metabolism and its implications for health. J Nutr. 2004;134(3):489-92. PMID 14988435
2. 2. National Institutes of Health, Office of Dietary Supplements. Vitamin C - Health Professional Fact Sheet. ods.od.nih.gov
3. 3. Kim MH, Kim H. The Roles of Glutamine in the Intestine and Its Implication in Intestinal Diseases. Int J Mol Sci. 2017;18(5):1051. PMC5454963