Bone Broth Benefits: Ancient Remedy Meets Modern Evidence

Open the refrigerator of a devoted bone broth maker and you’ll find something that looks less like soup and more like amber gelatin — a jar that jiggles when you nudge it. That wobble is the whole story in miniature: hours of simmering have pulled collagen out of bones and connective tissue and turned it into gelatin, the ingredient behind nearly every claim on the label.

Grandmothers simmered stockpots long before anyone printed “gut health” on a carton. What’s new is the price tag — a quart of premium broth can cost more than a whole chicken — and the promises attached to it: better joints, glowing skin, a sealed-up gut.

Some of those promises rest on real biochemistry. Others quietly borrow from studies that never involved broth at all. Sorting one from the other is worth doing before you commit to a daily mug.

Is bone broth really healthy for you?

The short, honest answer: yes, it’s a healthy food — and no, it’s not the near-medicinal elixir some marketing suggests. Bone broth is made by simmering animal bones and connective tissue, usually for 12 to 24 hours, often with a splash of vinegar and some vegetables. That long simmer breaks collagen down into gelatin and releases amino acids such as glycine, proline, and glutamine into the liquid.

What you end up with is a savory drink that typically carries 5 to 10 grams of protein per cup, roughly 30 to 50 calories, plenty of fluid, and — depending on how it was seasoned — anywhere from a modest to a substantial dose of sodium. As a swap for a sugary latte or a bag of chips, that’s a genuinely good trade. As a warm, hydrating option when you’re under the weather, it earns its place too; a small 1978 study famously found hot chicken soup moved nasal mucus along faster than hot water alone.

The trouble starts when a pleasant, protein-rich liquid gets recast as a treatment. Registered dietitians at major academic medical centers consistently land in the same place: bone broth is a reasonable addition to a varied diet, but the dramatic health claims run well ahead of the research. Keeping that distinction in mind makes everything else about this topic easier to evaluate.

What's actually in a cup of bone broth?

Nutrition labels for bone broth vary more than almost any other packaged food, because everything depends on the bones used, the simmer time, and how much water was added. Homemade batches vary just as much. Still, typical ranges look like this:

Nutrient (per 1 cup / 240 ml)	Typical range	What it means
Calories	30–50	Light enough for a daily habit
Protein	5–10 g	Mostly gelatin; low in tryptophan, so not a complete protein
Sodium	95–500 mg	The biggest label-to-label difference
Calcium	Under 20 mg	Less than 2% of the 1,000–1,200 mg adults need daily
Fat	0–3 g	Lower if skimmed after chilling

Two numbers deserve a second look. The protein content is real and useful — comparable to an egg in some cartons — but gelatin lacks meaningful tryptophan, an essential amino acid, so broth shouldn’t stand in for complete proteins like fish, eggs, beans, or dairy. And the calcium figure surprises almost everyone: despite the name, laboratory analyses have found that even long-simmered bone broth releases only trace minerals from bone. A cup of milk delivers roughly fifteen times more calcium than a cup of broth.

Does bone broth heal your gut?

This is the flagship claim, so it deserves the closest scrutiny. The reasoning goes like this: bone broth contains glutamine, glutamine fuels the cells lining the intestine, therefore broth repairs a “leaky gut.” Each link in that chain gets weaker as you move along it.

Glutamine genuinely is a preferred fuel for intestinal cells — that part is solid physiology. But the supporting research comes largely from clinical nutrition in hospitalized, critically ill patients receiving concentrated glutamine, not from healthy adults sipping broth. No published trial has tested whether bone broth itself changes intestinal permeability in people.

The “leaky gut” framing carries its own problem. Increased intestinal permeability is a real, measurable phenomenon seen alongside certain conditions, such as celiac disease and inflammatory bowel disease. Whether it’s a standalone condition that healthy people need to fix — and whether any food fixes it — is not established in mainstream medicine. Consumer sources including Harvard Health have been candid that the popular version of the concept outruns the evidence.

Here’s what you can say with confidence: broth is easy to digest, hydrating, and gentle when your appetite is poor, which is why clinicians have long suggested clear broths during stomach upsets. That’s a genuinely useful role. It’s just a humbler one than “gut healing,” and the difference matters when broth is priced like a supplement.

Can bone broth improve your skin?

The skin claim leans on collagen, and collagen is having a decade-long moment. The logic seems intuitive — skin is about 75% collagen by dry weight, broth contains collagen, so drinking broth should replenish skin. Digestion, unfortunately, doesn’t honor intuition.

When you swallow collagen, your digestive system breaks it into individual amino acids and small peptides, which enter a general pool your body draws from for whatever it’s building that day: muscle, enzymes, immune proteins, and yes, sometimes skin. There is no delivery route that escorts broth collagen directly to your face.

What about the studies showing collagen improves skin? They exist, and some are reasonably well designed — several randomized trials have reported modest improvements in skin hydration and elasticity over 8 to 12 weeks. But nearly all of them used hydrolyzed collagen peptide supplements in measured, concentrated amounts, often funded by supplement makers. Bone broth delivers an unknown and highly variable quantity of collagen; one analysis found the amino acid content of homemade broths swung dramatically from batch to batch. No trial has tested broth itself for skin outcomes.

The fair conclusion: broth provides some of the raw materials skin uses, alongside every other protein food you eat. If you enjoy it, that’s a fine bonus. Sun protection, adequate sleep, and not smoking remain the interventions with real dermatologic evidence behind them.

Does bone broth help sore joints?

Joint claims follow the same script as skin claims, with one extra wrinkle. The cartilage cushioning your joints is built largely from type II collagen, along with compounds like glucosamine and chondroitin — and simmered joints, knuckles, and feet do release some of these into broth.

Research on oral collagen for joint comfort is genuinely mixed. Some trials in athletes and in people with osteoarthritis have reported small improvements in activity-related joint pain; others found no meaningful difference from placebo. Reviews tend to describe the evidence as preliminary and the effects, where present, as modest. Once again, every one of those studies used standardized supplements — either hydrolyzed collagen or a specialized undenatured form — not broth, and broth’s collagen content is too inconsistent to compare.

Glycine, abundant in broth, plays a role in the body’s own collagen synthesis, which keeps the hypothesis alive. But a hypothesis is what it remains.

If joint pain is part of your daily life, the interventions with stronger evidence are less glamorous: regular strength training to support the joint, weight management if a clinician recommends it, and physical therapy. Persistent joint pain, swelling, redness, or stiffness lasting more than a few weeks deserves a medical evaluation rather than a dietary experiment — some causes, like inflammatory arthritis, respond far better when caught early.

Does bone broth build stronger bones?

Of all the claims, this one has the most persuasive name and the least persuasive numbers. It seems obvious that a liquid made from bones would be rich in bone minerals. Laboratory analyses say otherwise: even broths simmered for a full day, with vinegar added specifically to draw out minerals, contain only trace calcium and magnesium — typically under 5% of a day’s needs per serving, and often far less.

Compare that with what bones actually require. The NIH Office of Dietary Supplements sets adult calcium recommendations at 1,000 to 1,200 milligrams daily, best met through dairy, fortified plant milks, canned fish with bones, tofu set with calcium, and leafy greens. Vitamin D, adequate total protein, and weight-bearing exercise round out the evidence-backed bone-health toolkit.

Broth does contribute to one item on that list: protein, which supports the collagen matrix that minerals attach to. That’s a legitimate, if partial, contribution — bone is roughly one-third collagen by weight.

So the honest scorecard reads: bone broth supports bones about as much as any other protein source does, and less than milk, yogurt, or sardines. If osteoporosis runs in your family or you’ve had a fragility fracture, ask your clinician about bone density screening; no beverage substitutes for that conversation.

What will happen if I drink bone broth every day?

For most healthy adults, a daily cup is a perfectly reasonable habit with a few predictable effects — some helpful, some worth watching.

On the helpful side: you’ll add 5 to 10 grams of protein and about a cup of fluid to your day for very few calories. If that mug replaces a less nutritious snack or a sweetened drink, the swap alone is a win. Older adults, who often under-eat protein, may find a savory broth an easy way to close part of the gap.

On the watch-list side, sodium leads. Store-bought broths range from under 100 to roughly 500 milligrams per cup, and homemade versions depend entirely on your salt hand. The American Heart Association recommends keeping sodium under 2,300 milligrams daily — ideally closer to 1,500 for many adults — so a salty daily broth habit can quietly claim a fifth of that budget. Choosing low-sodium cartons or salting your own pot lightly solves this.

Two smaller notes: because broth protein is incomplete, it shouldn’t crowd out varied protein sources. And a minority of people who are sensitive to histamine report headaches or flushing with long-simmered broths, which accumulate histamine as they cook; the science here is thin, but shortening simmer time or freezing broth promptly seems to help those who notice it.

What won’t happen, on current evidence: dramatic changes to your skin, joints, or gut lining.

When's the best time to drink bone broth?

Whenever you’ll actually drink it. Despite confident claims online — morning for energy, evening for sleep, pre-workout for joints — no research shows that timing changes what bone broth does in your body. Digestion doesn’t check the clock.

That said, a few timing strategies make practical sense:

• As a mid-afternoon savory swap. A hot, salty, umami-rich cup can satisfy the same craving that sends people toward chips or crackers, at a fraction of the calories.
• Spread across the day with other proteins. Research on muscle maintenance, particularly in adults over 60, suggests distributing protein across meals works better than loading it into dinner. Broth can top up a lighter breakfast or lunch.
• When you’re sick. Warm fluids soothe a sore throat, loosen congestion, and keep you hydrated when solid food is unappealing — the one context where broth’s reputation and the evidence comfortably agree.
• As a cooking base. Arguably the smartest use: simmering grains, beans, or vegetables in broth adds protein and flavor without adding a separate “health habit” to remember.

One myth worth retiring: the idea that broth at night improves sleep because of its glycine content. A few small studies have examined glycine and sleep, but they used isolated glycine in amounts and forms that a cup of broth doesn’t reliably provide.

What bones make the best bone broth?

The best broth bones are the ones richest in connective tissue, because connective tissue is where the collagen lives. Marbled, meaty bones make a tasty liquid; collagen-heavy bones make one that sets like dessert when chilled — the jiggle that signals a gelatin-rich batch.

The collagen all-stars, from any animal:

• Chicken feet and wings — inexpensive and so collagen-dense that even a short simmer gels firmly.
• Beef knuckles and joints — cartilage-covered surfaces that release gelatin steadily over a long cook.
• Oxtail — collagen plus enough meat for deep flavor.
• Chicken backs and carcasses — the frugal classic; a roasted-chicken carcass plus feet makes an excellent hybrid.
• Marrow bones — more about richness and flavor than gelatin; best combined with jointy cuts rather than used alone.

A few technique notes earn their keep. Roasting bones at high heat first deepens flavor through browning, though it doesn’t change nutrition much. A tablespoon or two of vinegar is traditional for “pulling minerals from the bone,” but analyses show the mineral payoff is minimal — the acid’s real value is subtle flavor balance. And a bare simmer beats a rolling boil: gentle heat keeps the broth clear and the gelatin intact.

Fish frames and heads deserve a mention too — they make a delicate broth in under an hour, a good entry point for the simmer-averse.

How do you make bone broth safely at home?

The recipe is forgiving; the food safety is not. A pot of warm, protein-rich liquid is exactly what bacteria hope you’ll leave on the counter overnight.

The method, condensed: cover 2 to 3 pounds of bones with cold water in a large pot or slow cooker, add a splash of vinegar and aromatics if you like, bring to a boil, then drop to the barest simmer. Skim foam in the first hour. Chicken bones want 8 to 12 hours; beef bones, 12 to 24. Pressure cookers compress this to 2 to 4 hours with comparable gelatin extraction — a legitimate shortcut, not a cheat.

Then the part people skip. Strain the broth and cool it quickly: divide it into shallow containers rather than leaving a stockpot to cool slowly, and get it refrigerated within two hours. Food safety guidance is consistent that the 40°F–140°F range is where bacteria multiply fastest, and a deep pot of hot broth can linger there for many hours if left whole.

Once chilled, the fat rises and hardens into a cap you can lift off or leave for richness. Refrigerated broth keeps about four days; frozen, two to three months at best quality. Freezing in ice cube trays gives you cooking-sized portions without thawing a quart.

A chilled batch that wobbles like set gelatin is your quality certificate. A batch that stays watery still tastes fine — it just carried less collagen.

Bone broth vs. stock vs. regular broth: what's the difference?

The terms get used interchangeably on cartons, which muddies both cooking and nutrition. The traditional distinctions are worth knowing because they predict what’s actually in your cup.

Broth, classically, is made by simmering meat (with or without bones) for a relatively short time — an hour or two. It’s light-bodied, seasoned, and drinkable on its own, but typically carries only 1 to 2 grams of protein per cup.

Stock is made from bones, usually roasted, simmered for 4 to 6 hours. It picks up more gelatin than broth, is traditionally left unsalted, and is meant as a cooking building block.

Bone broth is essentially stock taken further: bones and connective tissue simmered 12 to 24 hours, often with vinegar, yielding the most gelatin and protein of the three — those 5 to 10 grams per cup — and usually seasoned for sipping.

Nutritionally, the differences are a matter of degree, not kind. All three are mostly water; the long-simmered version simply extracts more protein. None of them extracts meaningful minerals from bone, whatever the name implies.

For label readers, one practical tip cuts through the branding: ignore the name on the front and check the protein line on the back. A “bone broth” listing 1 gram of protein per cup is regular broth wearing a fashionable label — and often a premium price.

Should you worry about lead in bone broth?

This concern has a specific origin: a small 2013 UK study found that broth made from organic chicken bones and skin contained more lead than the tap water used to make it. Because bones store lead an animal accumulates over its lifetime, the finding was biologically plausible, and it traveled fast online.

Follow-up work has been reassuring. Subsequent analyses of both homemade and commercial bone broths found lead levels that were very low — generally comparable to, or lower than, levels in many everyday foods and well within typical dietary exposure. The original study measured detectable amounts, not dangerous ones, and detection technology is sensitive enough to find traces of lead in a remarkable share of the food supply.

Sensible context helps here. No food is truly zero-lead, which is why public health guidance focuses on total exposure — especially for young children and during pregnancy, when developing brains are most vulnerable. A varied diet is itself protective, both because it dilutes any single source and because adequate calcium and iron reduce how much lead the body absorbs.

Reasonable precautions, if you want them: source bones from producers you trust, don’t rely on broth as a daily staple for toddlers, and mention any concerns to your pediatrician or obstetric clinician, who can order a blood lead test if there’s genuine reason for one. Panic is not on the evidence-based menu.

Is store-bought bone broth as good as homemade?

It can be — the carton just has to earn it. Commercial bone broth production uses the same fundamental process as your stovetop, often with pressure equipment that extracts gelatin efficiently. The quality spread between brands, however, is enormous, and the front of the package won’t tell you where a given carton falls.

Three lines on the nutrition label do the sorting for you:

• Protein. A well-made bone broth lists 8 to 10 grams per cup. Anything at 1 to 2 grams is functionally regular broth, whatever the label says.
• Sodium. The range runs from under 100 milligrams to around 500 per cup. If broth is a daily habit, this line matters more than any other — a high-sodium cup every day meaningfully erodes the American Heart Association’s recommended ceiling.
• Ingredients. Shorter is generally better; “natural flavors” doing heavy lifting suggests the bones did less of it.

Homemade keeps its advantages: full control over salt, bone quality, and simmer time, at perhaps a quarter of the per-cup cost. Its disadvantage is honest labor — and batch-to-batch inconsistency, since home broths vary in protein content depending on bones and technique.

The refrigerator test works for cartons too. Chill one; if it gels, it’s gelatin-rich. Shelf-stable broths sometimes stay liquid despite decent protein because of processing, so treat the label as the tiebreaker.

Who should be careful with bone broth — and the honest bottom line

A few groups should pause before adopting a daily broth habit. People managing high blood pressure, heart failure, or kidney disease often work within strict sodium limits, and broth can be a stealthy contributor — low-sodium versions or lightly salted homemade batches are the workaround, ideally discussed with your care team. Anyone with chronic kidney disease should also ask about protein targets, since recommendations vary by stage. People who react to histamine-rich foods — with flushing, headaches, or hives — sometimes report symptoms from long-simmered broths, and while the research on histamine intolerance is still developing, a shorter simmer is an easy experiment. And if you notice new or unexplained symptoms after any dietary change, that’s a conversation for your doctor, not a forum.

Now the verdict this article has been building toward. Bone broth is a good food carrying claims meant for a great one. It hydrates, it delivers real protein cheaply, it comforts when you’re ill, and it makes everything cooked in it taste better — that list needs no embellishment. What the evidence doesn’t yet support is broth as a therapy for gut lining, skin aging, joint disease, or bone density; the studies behind those headlines used concentrated supplements or don’t exist at all.

Drink it because you like it. Keep an eye on the salt. And let the wobble in the jar be a sign of good technique — not a promise of transformation.

Frequently asked questions

What will happen if I drink bone broth every day?

For most healthy adults, nothing dramatic — you’ll add roughly 5–10 grams of protein and a cup of fluid daily for about 30–50 calories, which is a solid nutritional trade if it replaces a less healthy snack. The main thing to monitor is sodium, since some broths carry up to 500 mg per cup. Evidence does not support expecting visible changes to skin, joints, or digestion from daily broth alone.

When's the best time to drink bone broth?

There is no evidence that timing changes bone broth’s effects, so the best time is whenever it fits your routine. Practical options include a mid-afternoon savory swap for salty snacks, alongside lighter meals to spread protein through the day, or as a warm drink when you’re sick. Claims that evening broth improves sleep rely on glycine studies that used isolated glycine, not broth.

Is bone broth really healthy for you?

Yes, as a food — it’s a low-calorie, hydrating source of protein and amino acids that fits well into a balanced diet. It is not, on current evidence, a treatment for gut problems, skin aging, or joint disease; those claims borrow from supplement research or lack studies entirely. Its main downside is sodium, which varies widely between products, so labels are worth reading.

What bones make the best bone broth?

Bones rich in connective tissue produce the most gelatin: chicken feet, wings, and backs; beef knuckles and joints; and oxtail. Marrow bones add richness and flavor but relatively little gelatin, so combine them with jointy cuts. Roasting bones first deepens flavor. A finished broth that gels like dessert when chilled is the sign you chose well.

Does bone broth heal leaky gut?

No study has shown that bone broth changes intestinal permeability in people. The claim rests on glutamine, which does fuel intestinal cells, but the supporting research involves concentrated glutamine given to critically ill hospital patients, not broth in healthy adults. Increased gut permeability is a real phenomenon in certain diseases, but ‘leaky gut’ as a condition healthy people must fix is not established in mainstream medicine.

Will bone broth improve my skin or reduce wrinkles?

Probably not measurably. Collagen you drink is digested into amino acids that your body allocates wherever they’re needed, not routed directly to skin. Trials showing modest improvements in skin hydration and elasticity used concentrated hydrolyzed collagen supplements over 8–12 weeks — no trial has tested broth, whose collagen content varies widely from batch to batch. Sun protection and not smoking remain the skin habits with strong evidence.

Does bone broth help with joint pain?

The evidence is indirect and modest. Some studies of standardized collagen supplements report small improvements in activity-related joint discomfort, while others find no benefit over placebo — and none used broth. Broth does supply glycine and proline, raw materials for the body’s own collagen production. For persistent joint pain, swelling, or stiffness lasting more than a few weeks, see a doctor; strength training and physical therapy have stronger evidence than any food.

How long should I simmer bone broth?

Chicken bones need about 8–12 hours at a bare simmer; beef bones, 12–24 hours. A pressure cooker achieves comparable gelatin extraction in 2–4 hours. Longer isn’t always better — flavor can turn bitter past a day, and histamine levels rise with extended cooking, which matters for the minority of people sensitive to it. Whatever the method, cool the broth quickly in shallow containers and refrigerate within two hours.

Is store-bought bone broth as good as homemade?

It can be, but quality varies enormously between brands. Check three label lines: protein (a genuine bone broth lists 8–10 grams per cup, not 1–2), sodium (ranges from under 100 to about 500 mg per cup), and a short ingredient list. Homemade offers full control over salt and bones at lower cost. Chilling a carton is a useful test — gelatin-rich broth usually sets into a soft gel.

Who should avoid or limit bone broth?

People on sodium-restricted diets for high blood pressure, heart failure, or kidney disease should choose low-sodium versions or lightly salted homemade broth, ideally after discussing it with their care team. Those with chronic kidney disease should also ask about protein limits. People sensitive to histamine sometimes react to long-simmered broths. And broth shouldn’t be a daily staple for toddlers without a pediatrician’s input, given general dietary lead-exposure caution for young children.

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.