Bone broth has no strong, direct evidence showing it lowers cholesterol, and the small amount of saturated fat it contains could theoretically nudge LDL in the wrong direction if consumed in large quantities. The picture is more nuanced than that simple statement, though, because bone broth delivers amino acids like glycine and glutamine, along with collagen peptides, that have shown intriguing effects on blood lipids and vascular health in preliminary research. The honest answer is that bone broth is neither a cholesterol remedy nor a cholesterol villain, and whether it helps or hurts depends on how it is made, how much you drink, and what it replaces in your diet.
What Is Actually in Bone Broth That Matters for Cholesterol
Bone broth is made by simmering animal bones, often with connective tissue and sometimes marrow, for hours. That long cook extracts collagen (which breaks down into gelatin and individual amino acids), minerals, and varying amounts of fat. The fat content swings widely depending on the recipe and the animal parts used. An analysis of commercial bone broths found total lipid content ranging from under half a percent to nearly five percent, with broths that included fattier cuts like beef trotters or sheep head meat landing at the high end.1GIDA / The Journal of Food. Characterization of industrial bone broths formulated with various meat and non-meat ingredients A cup of homemade bone broth from a whole chicken carcass, skimmed of surface fat, lands on the lower end. A rich, marrow-heavy beef broth that hasn’t been skimmed can carry meaningfully more saturated fat per serving.
The dominant amino acids extracted from collagen are glycine, proline, and hydroxyproline, with smaller amounts of glutamine depending on how much connective tissue and meat scraps make it into the pot. Each of these has been studied independently for metabolic effects, but the concentrations you get in a cup of broth are far lower than what researchers use in supplement trials. That gap matters when evaluating any claimed cholesterol benefits.
The Saturated Fat Side of the Equation
Saturated fat is the most well-established dietary driver of LDL cholesterol. Animal studies and controlled feeding trials have repeatedly shown that saturated fatty acids raise LDL by slowing the rate at which your liver clears LDL particles from the bloodstream and by boosting production of the lipoproteins that carry cholesterol around.2PubMed Central. Saturated Fatty Acids and Risk of Coronary Heart Disease: Modulation by Replacement Nutrients The effect is amplified when dietary cholesterol intake is already high. If you are eating a diet that’s already rich in animal fats and you add several cups of fatty bone broth per day on top of that, the additional saturated fat could contribute to higher LDL levels.
That said, the saturated fat content of a typical serving of bone broth is modest compared to, say, a cheeseburger or a few tablespoons of butter. If you skim the solidified fat off the top after refrigerating your broth, the remaining liquid is quite lean. So while the saturated-fat concern is real in principle, it is manageable in practice for most people through simple preparation choices.
Not Everyone’s Cholesterol Responds the Same Way to Dietary Fat
One complication that rarely gets mentioned in bone broth discussions is that people vary enormously in how their blood cholesterol reacts to dietary cholesterol and fat. Research has consistently identified two broad categories of responders. In a study of 40 men, about 63 percent were classified as hyporesponders, meaning their LDL cholesterol barely budged when they added extra dietary cholesterol from eggs. The remaining 37 percent were hyperresponders, whose LDL and HDL both rose significantly.3The Journal of Nutrition. Men Classified as Hypo- or Hyperresponders to Dietary Cholesterol Feeding Exhibit Differences in Lipoprotein Metabolism A parallel study in pre-menopausal women found a similar split, with hyporesponders showing no meaningful change in LDL or HDL after increasing dietary cholesterol, while hyperresponders saw both go up.4PubMed. Pre-menopausal women, classified as hypo- or hyperresponders, do not alter their LDL/HDL ratio following a high dietary cholesterol challenge
What this means for bone broth is that the same cup of rich, fatty broth might have virtually no effect on one person’s lipid panel and a noticeable one on another’s. If you’re among the roughly two-thirds of the population whose cholesterol doesn’t react strongly to dietary sources, moderate bone broth intake is unlikely to make a meaningful dent in your numbers in either direction. If you’re a hyperresponder and your cholesterol tends to climb with dietary changes, it’s worth paying closer attention to how much fat stays in your broth.
Collagen Peptides and a Small But Interesting Study
The most direct evidence that something in bone broth might benefit cholesterol comes not from bone broth itself but from studies of collagen peptides, the protein fragments your body absorbs when you digest the gelatin in broth. A study in healthy adults tested a collagen tripeptide supplement and found that in participants who started with an LDL-to-HDL ratio of 2.5 or higher, the ratio dropped significantly over the study period. The supplement also reduced a marker of arterial stiffness across all participants.5PubMed Central. Effect of Collagen Tripeptide on Atherosclerosis in Healthy Humans
This is the kind of result that sounds exciting but deserves some caution. The study used a purified collagen supplement at a standardized dose, not bone broth with its variable composition. The improvement in the LDL-to-HDL ratio appeared only in people whose ratio was already elevated, meaning the effect was selective rather than universal. And one study, even a well-designed one, does not constitute proof. Still, it hints at a mechanism worth watching: collagen-derived peptides may influence how the body handles cholesterol, particularly in people whose lipid ratios are already unfavorable.
Glycine, Bile Acids, and a Theoretical Pathway
Glycine is the most abundant amino acid in collagen and therefore one of the main things you absorb from bone broth. It plays a role in bile acid metabolism that could indirectly affect cholesterol levels. Bile acids, which your liver makes from cholesterol, need to be conjugated with glycine or taurine before they can do their job of helping you digest and absorb dietary fat.6Amino Acids. Glycine metabolism in animals and humans: implications for nutrition and health When bile acids are lost through feces rather than recycled back to the liver, the liver has to pull more cholesterol out of circulation to make new ones, and that process requires more glycine or taurine.7PubMed Central. Examining the Effects of Diet Composition, Soluble Fiber, and Species on Total Fecal Excretion of Bile Acids: A Meta-Analysis
The theoretical chain goes like this: dietary glycine supports bile acid production, which pulls cholesterol from your blood to make those bile acids, potentially lowering circulating cholesterol. This is actually the same basic mechanism by which soluble fiber lowers cholesterol, since fiber binds bile acids in the gut and forces your liver to make replacements. The catch is that no one has demonstrated that the amount of glycine in a few cups of bone broth is enough to meaningfully shift this process. Glycine supplements used in metabolic research typically deliver grams per day, and while bone broth does provide glycine, you would need to drink a lot of it to match supplement-level doses. The pathway is plausible but unproven at real-world bone broth consumption levels.
Glutamine, Gut Health, and an Indirect Connection
Bone broth also contains glutamine, an amino acid that has drawn attention for its role in maintaining the gut lining. Research shows that glutamine helps preserve the tight junctions between intestinal cells, which act as gatekeepers controlling what passes from the gut into the bloodstream. When glutamine is depleted, the expression of key barrier proteins drops and gut permeability increases.8PubMed Central. The Roles of Glutamine in the Intestine and Its Implication in Intestinal Diseases Both lab studies and clinical observations confirm that supplementing with glutamine can restore impaired gut barrier function.9PubMed Central. Role of Glutamine in Protection of Intestinal Epithelial Tight Junctions
The link to cholesterol is indirect but genuinely interesting. A leaky gut allows bacterial toxins to slip into the bloodstream, triggering inflammation that contributes to metabolic dysfunction including unfavorable lipid profiles. In rats fed a high-fat diet, glutamine supplementation restored gut barrier function, reshaped the gut microbiome in beneficial ways, and improved markers of metabolic health through what researchers describe as the gut-liver axis.10PubMed. Preventive Effects of l-Glutamine on High-Fat Diet-Induced Metabolic Disorders Linking with Regulation of Intestinal Barrier Integrity, Hepatic Lipid Metabolism, and Gut Microbiota in Rats Translating rat studies to humans is always uncertain, and the doses involved were again far higher than what a typical serving of broth provides. But this line of research suggests that bone broth’s reputation as a “gut healer” may carry downstream metabolic consequences, even if the effect on your cholesterol panel from casual consumption would be subtle at best.
Lead Contamination Is Worth Knowing About
A less pleasant consideration that rarely appears in the wellness conversation around bone broth is the potential for lead contamination. Bones accumulate lead over an animal’s lifetime, and simmering them for hours can release that lead into the liquid. A controlled study of organic chicken broth found that broth made from bones contained lead at roughly 7 micrograms per liter, and broth made from cooked skin and cartilage reached about 9.5 micrograms per liter. Both were several times higher than the lead concentration in the tap water used to make the broth, which tested at under 1 microgram per liter.11PubMed. The risk of lead contamination in bone broth diets
These concentrations are still low in absolute terms, and an occasional cup of bone broth is unlikely to pose a significant lead risk for a healthy adult. But people who drink bone broth daily as a health practice, or who give it regularly to young children, should be aware that the cumulative exposure adds up. Lead is one of those substances where there is no established safe threshold, and the irony of consuming a “health food” that carries even a small lead load is worth acknowledging. Sourcing bones from pasture-raised animals and shorter cooking times may help reduce the concentration, though this hasn’t been rigorously tested.
How Preparation Choices Change the Lipid Picture
If you are specifically managing cholesterol and want to keep drinking bone broth, how you make it matters more than whether you make it. The simplest and most impactful step is to refrigerate your broth after cooking and scrape off the layer of solidified fat that forms on top. This removes most of the saturated fat while keeping the gelatin, amino acids, and minerals intact. A well-skimmed broth is essentially a high-protein, low-fat liquid.
Cooking time also matters. Longer simmering extracts more collagen and minerals, but also more fat from marrow and connective tissue. Using joint bones and knuckles rather than marrow bones shifts the balance toward gelatin and away from fat. Adding a splash of vinegar, a common recommendation in bone broth recipes, is thought to help extract minerals from the bones, though the evidence for a dramatic effect is thin. What vinegar definitely does not do is change the fat or cholesterol content of the final product.
The type of animal matters too. Chicken and fish broths tend to be leaner than beef or lamb broths, and as the commercial broth analysis showed, recipes that incorporate fattier animal parts push the lipid content significantly higher.1GIDA / The Journal of Food. Characterization of industrial bone broths formulated with various meat and non-meat ingredients If cholesterol management is a priority, lighter broths with the fat removed are the obvious choice.
Bone Broth Versus Other Approaches That Actually Move the Needle
The broader context for evaluating bone broth and cholesterol is that the interventions proven to lower LDL cholesterol are well established and fairly powerful: soluble fiber from oats, beans, and fruits; replacing saturated fats with unsaturated fats; regular aerobic exercise; maintaining a healthy body weight; and, when lifestyle changes aren’t enough, statin medications. Bone broth, even if every theoretical benefit panned out, would be a minor player compared to these.
An interesting comparison is mushroom-based broths, which have gained popularity as a plant-based alternative. A systematic review of mushroom consumption and cardiometabolic health found consistent evidence that mushrooms improve circulating triglyceride levels, though they had a neutral effect on total cholesterol, LDL, and HDL.12MDPI (Nutrients). An Assessment of Mushroom Consumption on Cardiometabolic Disease Risk Factors and Morbidities in Humans: A Systematic Review So even a food with actual evidence behind it shows modest and selective effects on blood lipids. The notion that any single broth, bone-based or otherwise, is going to substantially transform your cholesterol profile is probably unrealistic.
What to Make of the Wellness Claims
Bone broth sits in an awkward spot in the nutrition landscape. It genuinely contains useful compounds: bioavailable collagen peptides, glycine, glutamine, and minerals. These compounds have real biological roles, and some of them show promising effects on vascular health and metabolic function in early-stage research. But the leap from “contains compounds that have shown effects in isolated studies at supplement-level doses” to “drinking this broth will lower your cholesterol” is enormous, and no clinical trial has made that connection directly.
The wellness industry tends to stack theoretical mechanisms on top of each other and present the tower as if it were evidence. Glycine supports bile acid synthesis, bile acids use cholesterol, therefore bone broth lowers cholesterol. Each link in that chain has some basis, but the chain as a whole has never been tested. If you enjoy bone broth and it fits comfortably into your diet, there’s little reason to think it will harm your cholesterol, especially if you skim the fat. If you’re drinking it specifically as a cholesterol intervention, you’re relying on a hypothesis, not a finding, and your effort would be better directed at dietary changes with decades of clinical support behind them.
When Bone Broth Might Actually Be Counterproductive
There are a few scenarios where bone broth could genuinely work against your cholesterol goals. The first is if you’re drinking commercial bone broth products that have been formulated for richness and flavor, which often means higher fat content. Some commercial products also add ingredients like butter, cream, or coconut oil for taste, all of which bump up the saturated fat considerably. Reading the nutrition label matters here, because “bone broth” on the package can mean very different things depending on the brand.
The second scenario is displacement. If you adopt a daily bone broth habit and it replaces something that was actively helping your lipid profile, like a bowl of oatmeal at breakfast or a bean soup at lunch, you’ve traded a proven cholesterol-lowering food for one that is, at best, neutral. Dietary choices are always relative. What you add matters less than what you swap out.
The third is portion creep. A cup of lightly skimmed bone broth is fine. But bone broth enthusiasts sometimes consume multiple cups daily, use it as a cooking fat, or pair it with high-fat meals under the assumption that the broth’s benefits offset the rest of the plate. That kind of thinking can lead to a net increase in saturated fat intake, which is exactly what you don’t want when managing cholesterol. Bone broth is a food, not an antidote.