Skipjack
817 foods contain this ingredient
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About Skipjack
Skipjack is a smaller tuna species used in pet food and treats as a palatable, protein-dense fish ingredient.
Skipjack (skipjack tuna) is used in dog and cat foods as a highly palatable fish protein and flavor source, supplying complete amino acids, omega‑3 fatty acids (EPA/DHA) for skin, coat, joint and cognitive support, and trace minerals such as iodine. It is generally lower in mercury than larger tuna species but can still contribute to heavy‑metal exposure if fed in large amounts, may trigger fish allergies in some pets, and should be included as part of a balanced, properly processed diet (raw fish can contain thiaminase and pathogens if not handled correctly).
Related ingredients
- Derived from
- skipjack tuna (Katsuwonus pelamis)
- Primary role
- palatability enhancer and animal protein source
Why it's used
Skipjack has a strong natural flavor that pets tend to find highly palatable, which is why it shows up often in treats and toppers as well as complete diets. It also contributes complete amino acids and omega-3 fatty acids typical of fish protein.
Common concerns
- Mercury relative to other tuna FDA testing data from 1990 to 2012 lists canned light tuna (predominantly skipjack, though it can include yellowfin) with a mean mercury concentration around 0.126 ppm, notably lower than albacore tuna's mean of roughly 0.350 ppm in the same dataset.
- Thiaminase if fed raw Some fish contain thiaminase, an enzyme documented by the Merck Veterinary Manual to degrade thiamine and contribute to thiamine deficiency, most often reported in cats fed largely raw fish diets; cooking inactivates the enzyme.
- Fish allergy Fish is listed by VCA Animal Hospitals among the more common food allergens identified in cats, and appears less frequently among documented allergens in dogs.
Also relevant
Skipjack matures and is harvested younger than large, long-lived tuna species like bluefin, which is generally why it and other smaller tuna test lower for mercury in FDA sampling.
3 sources cited
- FDA mercury testing data (1990-2012) shows canned light/skipjack tuna averaging around 0.126-0.144 ppm mercury, lower than albacore's mean of about 0.358 ppm
- Thiaminase in raw fish degrades thiamine and is linked to thiamine deficiency, most commonly documented in cats
- Fish is documented as a common food allergen in cats
Common Questions
What category is Skipjack?
Skipjack is categorized as a protein ingredient in the KibbleLab database.
Is Skipjack part of an allergen group?
Yes. Skipjack is grouped under the Fish allergen group in the KibbleLab database.
Which foods contain Skipjack?
817 foods in the KibbleLab database contain Skipjack, including Reveal, Sheba, Snappy Tom.
Foods with Skipjack
Alphabetical by brand. Scores run 0 to 10, higher is better, on published veterinary science.
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