Ingredient file // Flavor
Fish Bone Broth
Fish flavor and water, with modest nutrition
Fish bone broth is the liquid left after fish bones and attached scraps cook in water. It adds moisture and fish aroma to food. Its small amount of dissolved solids does not replace fish protein or fish oil.
Role in the food Does a job
- What it is
- A cooking liquid made from fish bones and attached scraps, with the solid bones removed.
- Made from
- Fish bones and attached fish scraps
- Main job
- Moisture and fish flavor
- Typical amount
- Not published
- Watch for
- A diagnosed fish allergy
- Not the same as
- Fish bone meal
Our read // In our catalog
In 1 of every 518 foods we track
Share of foods that list it
0%
6 of the 3,105 foods with an ingredient list on file, from 3 brands. 5 dry dog food, 1 wet dog food.
Each square is 1% of the catalog
Where it sits on the label
Median position 30. In the top five of 1 food, so it is usually a minor ingredient.
Above the salt
Usually listed after the salt, which caps it at roughly 1% of the recipe in 83% of foods.
Price per lb
Median of the cheapest bag price across 5 priced foods, 38% above the catalog. The price is the food's, not the ingredient's.
Who leans on it
50%
of the foods that list it are from Open Farm. 3 brands use it in total.
What it is
How it is made
Filleting leaves frames and bones with fish still attached. Cooking them in water gives pet food makers a liquid fish ingredient and puts a seafood processing leftover to use.4,7,9,10
- 01 // Source Fish frames Bones and attached scraps remain after processors remove fish fillets.
- 02 // Process Cooked in water Heating the frames draws some protein, fat and aroma into the cooking liquid.
- 03 // Process Solids removed The cooked liquid is separated from the bones and other solid pieces.
- 04 // Output Fish bone broth The liquid reaches the food maker as a mostly watery ingredient for mixing into food.
What is in it
Composition, dry matter
72.7
% protein
Protein makes up most of the solids in one European retail fish broth, but that broth is 97.8% water as sold.
Why it is in the bag
There for fish flavor and moisture, not nutrition
- Main nutrition
- Supporting nutrient
- Does a job
- Mostly filler
Makers add it for fish flavor and moisture, and it puts bones left from fish processing to use. Ingredient lists run by weight, and one retail fish broth is 97.8% water, so it brings little dry matter for its weight. Where it sits far down the list, it is likely too little to change the food's protein or fat. Higher up, it still mainly supplies water.4,8,9,10
-
01
Adds water
Liquid broth wets dry food or contributes moisture during mixing. One commercial fish broth is 97.8% water, so its weight on an ingredient list says little about its solids.8,10
-
02
Adds fish aroma
Cooking fish bones releases aroma compounds into the liquid. That gives makers a way to add fish character, although no controlled dog test here shows that broth itself improves intake.1,4
-
03
Uses processing leftovers
Filleting leaves bones and frames that need an outlet. Making broth gives those materials another use and lets a maker add fish flavor without using more fillet.9
How much No standard recipe percentage is published; fish broth is also sold as a pour-on topper, while ingredient lists show weight order.8,10
Our read // The claims
What the evidence supports
Strong: controlled studies in dogs agree. Some: small or mixed dog data. Thin: mechanism or lab work only. None: nothing, or the evidence points the other way.
-
Brands say
Broth adds water to dry food
Evidence
- Strong
- Some
- Thin
- None
One commercial fish bone broth declares 97.8% moisture. Pouring it over kibble adds water by simple arithmetic; that figure does not show whether a dog consumes more liquid across the whole day.10
-
Brands say
Fish broth makes picky dogs eat
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
In a dog choice test, a diet with 10% salmon protein hydrolysate was preferred to a control diet. Hydrolysate is a different fish ingredient. The test does not show that fish bone broth beats water for appetite.1,4
-
Brands say
Its collagen keeps dog joints flexible
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
A 12-week, industry-funded trial in 31 dogs found better gait after specific collagen peptides, not broth. One commercial fish broth declares 100 mg collagen per 100 mL. No comparable broth trial shows a joint effect.2,10
-
Brands say
Fish bones make broth a calcium source
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
A survey of 30 human-food broths, including fish broth, found little calcium even compared with tap water. It did not test dog food, but bones alone do not make the strained liquid a dependable calcium source.5,7
Straight answers
What owners ask
-
Q01
Is it just filler?
NoIt brings water and fish aroma, useful jobs in a recipe. A spoonful contributes little dry matter, so judge the food by its other fish ingredients and the complete food's nutritional analysis.4,10
-
Q02
Does it replace fish oil?
NoBroth is a watery cooking liquid. One commercial example declares 0.4% fat as sold, and its label gives no omega-3 amount. Look for fish oil as its own ingredient if that is what you want.7,10
-
Q03
Does it contain actual bones?
Not as piecesThe bones are cooked to make the liquid, then the solids are separated. Fish bone broth on a label describes the cooking liquid; fish bone meal is a different, dried ingredient.4,7
Who uses it
Brands, best sellers and the company it keeps
Top brands, by foods that list it
Usually listed with, share of the foods that list it
- Salmon 83%
- Sunflower Oil 83%
- Ocean Whitefish 50%
- Menhaden Fish Meal 50%
- Herring Meal 50%
- Coconut Oil 50%
- Ocean Rockfish 50%
- Barley 50%
- Potatoes 33%
- Sweet Potatoes 33%
- Tapioca 33%
- Whitefish 33%
On the shelf
Foods that list it
6 foods in our reviews list it. Here are some of them.
Show 5 more
Open Farm RawMix Wild Ocean Recipe Dry Dog Food34.4% proteinStella & Chewy’s SuperBlends Whitefish & Salmon : Raw Blend Oven Baked Kibble with Superfoods, Antioxidants & Probiotics Dry Dog Food30.7% proteinOpen Farm RawMix Grain-Free Whitefish Dry Dog Food33.3% proteinOpen Farm Ancient Grains RawMix Wild Ocean Fish & Ancient Grains Dry Dog Food34.4% proteinStella & Chewy’s SuperBlends Whitefish & Salmon : Raw Coated Oven Baked Kibble with Superfoods, Antioxidants & Probiotics Dry Dog Food29.5% proteinOur read // On the bag
Read it as flavor and moisture
Broth is weighed while wet, so a high place on the ingredient list can exaggerate its nutritional contribution. Check the named fish, fish meal and fish oil around it, then read the food's analysis. Treat broth as a flavor and moisture ingredient, not a joint supplement or calcium source.
Sources
What we read
Checked October 1, 2026.
- 1 Fish meals, fish components, and fish protein hydrolysates as potential ingredients in pet foods
- 2 The oral intake of specific Bioactive Collagen Peptides (BCP) improves gait and quality of life in canine osteoarthritis patients - A translational large animal model for a nutritional therapy option
- 3 IgE reactivity to fish allergens from Pacific cod (Gadus macrocephalus) in atopic dogs
- 4 Composition of volatile flavor compounds from mackerel head broth and mackerel bone broth, Scomberomorus commerson (Lacepède, 1800)
- 5 Nutritional insights into broths in relation to elemental composition
- 6 Scombrotoxin Poisoning and Decomposition
- 7 Official Names and Definitions of Feed Ingredients
- 8 What's in the Ingredients List?
- 9 Fish by-products utilization, getting more benefits from fish processing
- 10 Monster Dog Bone Broth Fish