A cup of chicken bone broth contains roughly 9 to 10 grams of protein. That’s about 50% more than regular chicken stock, which delivers around 6 grams per cup. The exact amount varies depending on how the broth is made, how long it simmers, and what ratio of bones to water is used.
How It Compares to Stock and Regular Broth
The protein gap between bone broth and standard chicken stock comes down to cooking time and ingredients. Chicken stock typically simmers for a few hours with a mix of bones, meat, and vegetables. Bone broth uses a higher proportion of bones and simmers much longer, which pulls more collagen and other proteins out of the connective tissue.
A cup of chicken stock gives you about 6 grams of protein. Bone broth bumps that to 9 or 10 grams. That difference matters if you’re sipping broth as a snack or using it as a base for soups, but it’s worth keeping in perspective: a single chicken breast has around 30 grams. Bone broth is a useful protein supplement, not a replacement for whole protein sources.
The Type of Protein in Bone Broth
Most of the protein in chicken bone broth comes from collagen, the structural protein in bones, cartilage, and skin. When collagen dissolves in hot water over many hours, it breaks down into gelatin, which is why a well-made bone broth turns jiggly in the fridge.
Collagen protein has a distinctive amino acid profile. Lab analysis of chicken bone broth shows that glycine is the most abundant amino acid, followed by glutamine, proline, and hydroxyproline. Chicken bone broth is particularly high in hydroxyproline and proline compared to beef or turkey versions. These amino acids play roles in skin, joint, and gut health, which is a big part of why bone broth has developed its health reputation.
One thing collagen protein is not, however, is “complete.” It’s low in several essential amino acids your body can’t make on its own, including isoleucine, methionine, and histidine. So while bone broth protein counts toward your daily total, it shouldn’t be your only source.
How Well Your Body Absorbs It
The gelatin in bone broth has an estimated bioavailability of around 60%, meaning your body absorbs and uses roughly six out of every ten grams. That’s lower than collagen peptide supplements, which are enzymatically broken into much smaller fragments (typically 2,000 to 5,000 Daltons) that dissolve easily and absorb more efficiently in the small intestine. Bone broth gelatin requires more digestive breakdown before absorption, which reduces how much reaches your tissues in a usable form.
In practical terms, if your cup of chicken bone broth has 10 grams of protein, your body may effectively use about 6 grams of that. It’s not a dramatic loss, but it’s worth knowing if you’re counting protein intake carefully.
What Changes the Protein Content
Not all chicken bone broth is created equal, and cooking method is the biggest variable.
Simmer time: A quality bone broth needs at least six hours of cooking. Broths that simmer for 24 hours or more extract significantly more protein from the bones, producing a thicker, more gelatinous result. If your homemade broth is thin and watery, it likely hasn’t cooked long enough to pull much collagen out.
Bone type and quantity: Joints, knuckles, and feet are collagen-rich and yield more protein than long bones with less connective tissue. Using a higher ratio of bones to water also concentrates the protein. Chicken feet, in particular, are a go-to ingredient for maximizing gelatin content.
Vinegar: You’ll find widespread advice to add apple cider vinegar to your broth to help extract nutrients from the bones. The reality is underwhelming. Apple cider vinegar isn’t acidic enough to meaningfully break down bone in a few hours of simmering. Studies comparing broths made with and without vinegar show negligible differences. It won’t hurt anything, but don’t expect it to boost your protein yield.
Store-Bought vs. Homemade
Commercial chicken bone broth products generally land in the 9 to 10 gram range per cup, though there’s real variation on the shelf. Some budget brands use shorter cooking times or more water, dropping the protein closer to regular stock levels. Reading the nutrition label is the fastest way to check: if a chicken bone broth has less than 7 or 8 grams of protein per cup, it’s not much different from stock.
Bone broth protein powders are a separate category. These are dehydrated and concentrated, so a single scoop can deliver 10 to 20 grams of protein depending on the brand. They’re convenient but taste and texture differ significantly from liquid broth.
Homemade bone broth can match or exceed store-bought versions if you use plenty of collagen-rich bones and let it simmer for a full day. The telltale sign of high protein content is a broth that gels firmly when refrigerated. If it stays liquid in the fridge, the protein content is on the lower end.
Putting the Numbers in Context
Ten grams of protein per cup is meaningful but modest. For comparison, a large egg has about 6 grams, a cup of Greek yogurt has 15 to 20, and a palm-sized portion of chicken breast has around 25 to 30. Bone broth fits best as a between-meal protein source, a cooking liquid that adds nutrition to grains and soups, or a warm drink that contributes protein you wouldn’t otherwise get from plain water or tea.
If you’re using bone broth specifically for joint or gut support, the collagen-derived amino acids (glycine, proline, hydroxyproline) are the real draw, not the total protein number. A cup or two daily gives you a consistent supply of those amino acids in a form your body recognizes and can use, even if the overall protein count won’t replace a meal.