Bone Broth Nutrition Facts: Protein, Collagen, and What You're Actually Getting

I have been talking about bone broth for over two decades. As a naturopathic physician and the creator of the Bone Broth Diet, I have watched this ancient food go from something my patients looked at sideways to a staple in millions of households. And the number one question I still get? What is actually in this stuff?

It is a fair question. We hear a lot of big claims about bone broth, and I think you deserve straight answers. So let's look at the real nutritional picture: what bone broth contains, what that means for your body, and why not all bone broths are created equal.

What Makes Bone Broth Different From Regular Broth?

Here is the key: bone broth is simmered low and slow for a minimum of 18 to 24 hours. That extended cooking time is what draws collagen, gelatin, amino acids, and minerals out of the bones and into the liquid. Regular chicken or beef stock typically simmers for just a few hours, which means it misses most of those nutrients entirely. When you pick up your bone broth and it turns thick and gel-like when cold, that is gelatin. That is exactly what you want.

Bone Broth Nutrition at a Glance

Per one cup (8 oz) serving, a quality bone broth typically provides:

• Calories: 35 to 50

• Protein: 9 to 10 grams (primarily from collagen and gelatin)

• Fat: 0 to 1 gram

• Carbohydrates: 0 grams

• Sodium: 95 to 570 mg depending on the product (always check labels)

• Collagen: varies by product and simmer time

Those protein numbers matter. Bone broth gives you a meaningful protein contribution in a low-calorie, low-carb package. That is one of the reasons I have always recommended it as a between-meal drink rather than a high-sugar snack.

How Much Protein Is in Bone Broth?

Bone broth contains roughly 9 to 10 grams of protein per cup in a well-made, quality product. I go into this in my full breakdown of how much protein bone broth actually has, but the quick version is this: the protein comes primarily from collagen and gelatin rather than from muscle meat. That gives it a very different amino acid profile from what you get in chicken breast or a whey shake.

Collagen-derived protein is rich in glycine, proline, and hydroxyproline: the amino acids that serve as building blocks for connective tissue, gut lining support, and skin structure. You will not find these in high concentrations in most other protein sources.

Is bone broth a complete protein? Technically no. It is low in some essential amino acids like tryptophan. But the amino acid profile it provides is uniquely valuable and complementary to a whole-foods diet. Do not think of it as a protein replacement. Think of it as a collagen-building, gut-supporting addition to everything else you are eating.

Collagen in Bone Broth: What You Are Actually Getting

Collagen is the most abundant protein in the human body. It is the scaffolding that holds your skin firm, cushions your joints, and supports your gut lining. Starting around age 25, your body produces less and less of it. Bone broth is one of the few dietary sources that provides collagen in a bioavailable, food-based form. When you simmer bones for 24 hours, collagen breaks down into gelatin, which your body can use directly to support collagen synthesis.

If you want to understand how bone broth collagen compares to taking collagen supplements, my post on bone broth vs. collagen lays out the full comparison. The short answer: both work through the same amino acid pathway, but bone broth brings gelatin, gut-supportive compounds, and minerals that isolated peptides simply cannot match.

Key Amino Acids and What They Do

Beyond the overall protein number, the specific amino acids in bone broth are worth knowing about:

• Glycine: may support a calm nervous system, restful sleep, and healthy gut lining function

• Proline and hydroxyproline: the primary building blocks of collagen, supporting skin and joint structure

• Glutamine: may support the integrity of the intestinal wall and overall gut health

• Arginine: involved in circulation and tissue repair

Minerals in Bone Broth

A well-made bone broth also contains minerals drawn from the bones themselves: calcium, magnesium, phosphorus, and potassium. The exact amounts depend on the bones used and simmer time. While bone broth should not be your only source of these minerals, it contributes in a bioavailable form. One note on sodium: bone broth can range from very low to fairly high in sodium depending on the product. Always read the label.

The Bottom Line on Bone Broth Nutrition

Bone broth is low in calories, meaningful in protein, and uniquely rich in collagen-building amino acids that are hard to get elsewhere. If you are ready to make it a daily habit, Dr. Kellyann's bone broth is simmered for a minimum of 24 hours from grass-fed, pasture-raised bones, so you are getting the full nutritional profile every time. And if you want to see how bone broth fits into a complete plan, the Bone Broth Diet is the 21-day framework I built around exactly these principles.