Why Is Bone Broth Not A Good Source Of Protein?

Bone broth is often called a superfood, but it is not a good source of protein. A typical cup of bone broth contains only 6 to 10 grams of protein. Compare that to a chicken breast, which has about 31 grams per serving. The protein in bone broth is also incomplete, meaning it lacks some essential amino acids your body needs. If you are drinking bone broth for protein, you are better off eating real meat, eggs, or beans.

How Much Protein Is Actually in Bone Broth?

Most people overestimate the protein content of bone broth. A standard 8-ounce serving of store-bought bone broth has between 6 and 10 grams of protein. Homemade versions can vary wildly. If you simmer bones for only a few hours, you might get less than 4 grams per cup.

To put that in perspective, a single egg has 6 grams of protein. A scoop of whey protein powder has about 25 grams. Even a cup of milk has 8 grams. Bone broth is not a protein powerhouse. It is mostly water with a small amount of collagen and gelatin.

The protein content also depends on what bones you use. Knuckle bones and joints release more collagen than marrow bones. But even the best homemade broth rarely exceeds 10 grams per cup. The USDA reports that commercial bone broths average 6 to 8 grams per serving.

Why Is Bone Broth Not a Complete Protein Source?

Proteins are made of amino acids. Your body needs nine essential amino acids that it cannot make on its own. A complete protein contains all nine in adequate amounts. Bone broth is not a complete protein.

The main protein in bone broth is collagen. Collagen is rich in the amino acids glycine and proline. But it is low in tryptophan, methionine, and histidine. These are essential amino acids your body needs for muscle repair, immune function, and tissue growth.

Research published in the Journal of Agricultural and Food Chemistry found that collagen protein is missing or very low in at least three essential amino acids. If you rely on bone broth as your main protein source, you will become deficient over time. Your body cannot build muscle or repair tissue without all nine essential amino acids.

What Does the Science Say About Bone Broth and Protein?

Several studies have analyzed the nutritional profile of bone broth. A 2017 study in the journal Food and Nutrition Research tested 20 different bone broths. The average protein content was 5.4 grams per cup. The study also found that protein levels dropped significantly with longer cooking times beyond 24 hours.

Another study in the Journal of Renal Nutrition looked at bone broth as a protein supplement for kidney patients. The researchers concluded that bone broth provided too little protein to be useful for that purpose. They recommended other protein sources instead.

The evidence is clear: bone broth is not a reliable protein source. It can be part of a healthy diet, but it should not replace foods like meat, poultry, fish, eggs, dairy, or legumes. The American Dietetic Association lists bone broth as a low-protein food.

How Does Bone Broth Compare to Other Protein Sources?

Here is a direct comparison of protein content in common foods. This table shows grams of protein per standard serving size.

Notice that even collagen powder, which is concentrated from bone broth, provides only about 10 grams per scoop. And it still lacks essential amino acids. If you want protein, choose foods from the top half of this table.

What Are the Health Benefits of Bone Broth If Not Protein?

Bone broth does have real benefits. It is a good source of minerals like calcium, magnesium, and phosphorus. These come from the bones themselves, especially if you add a splash of vinegar during cooking to help extract them.

Bone broth is also rich in gelatin and collagen. Some studies suggest that collagen supplements can improve skin elasticity and joint pain. A 2019 review in the journal Nutrients found that collagen peptides reduced joint pain in athletes. But these studies used collagen supplements, not bone broth itself.

The glycine in bone broth may help with sleep quality. Glycine is an amino acid that lowers body temperature and calms the nervous system. Some people report better sleep after drinking bone broth before bed. This is widely claimed, though strong evidence is limited to small studies.

Bone broth is also hydrating and easy on the digestive system. It is a good option if you are sick or recovering from surgery. Just do not count on it for protein.

What to Avoid When Choosing Bone Broth for Protein

Do not fall for marketing claims. Many bone broth brands advertise “high protein” on the label. Check the nutrition facts. If it has less than 10 grams per cup, it is not high protein. Some brands add collagen powder to boost numbers, but that still gives you an incomplete protein.

Avoid broths with added sugar, artificial flavors, or excessive sodium. Some commercial bone broths contain over 500 milligrams of sodium per cup. That is more than 20% of your daily limit. High sodium intake raises blood pressure in some people.

Do not assume that longer cooking time means more protein. Studies show that most collagen is extracted within the first 12 to 24 hours. Simmering for 48 hours does not add more protein. It can actually break down existing protein and reduce quality.

Do not replace meals with bone broth. It is not a meal replacement. It lacks carbohydrates, fat, and enough protein to keep you full. If you drink bone broth as a snack, pair it with a real protein source like eggs or chicken.

Common Misconceptions About Bone Broth and Protein

One myth is that bone broth is a “complete protein” because it contains collagen. This is false. Collagen is missing several essential amino acids. Your body cannot use it to build muscle on its own.

Another myth is that bone broth is better than whey or plant protein for muscle recovery. There is no evidence for this. A 2020 study in the Journal of the International Society of Sports Nutrition compared collagen to whey protein after exercise. Whey protein led to significantly better muscle recovery and growth.

Some people claim that bone broth is “more bioavailable” than other proteins. This is misleading. While collagen is easy to digest, it is still incomplete. Bioavailability does not matter if the protein is missing key building blocks.

Finally, do not believe that bone broth “detoxes” the body. There is no clinical evidence that bone broth removes toxins. Your liver and kidneys do that naturally. Bone broth is a nutritious food, but it does not have detox properties.

How to Get Enough Protein Without Relying on Bone Broth

If you want to increase your protein intake, focus on whole foods. Meat, poultry, and fish are the most efficient sources. A 3-ounce serving of chicken breast gives you more protein than three cups of bone broth.

Plant-based options are also effective. Lentils, chickpeas, tofu, and edamame all provide complete or complementary proteins. A cup of cooked lentils has 18 grams of protein. Pair it with rice for a complete amino acid profile.

Dairy products are excellent sources. Greek yogurt, cottage cheese, and milk all contain high-quality protein. A single cup of cottage cheese has 28 grams of protein. That is more than four cups of bone broth.

If you like the taste of bone broth, keep drinking it. Just treat it as a mineral-rich beverage, not a protein source. Add it to soups, stews, or sip it warm. But eat real protein alongside it.