Euphausia Superba
Last updated: February 11, 2026
Table of Contents
Quick Summary
Euphausia Superba Antarctic krill species (Euphausia superba), small crustaceans rich in omega-3s (EPA/DHA), astaxanthin, and highly digestible protein.
What It Is
Antarctic krill species (Euphausia superba), small crustaceans rich in omega-3s (EPA/DHA), astaxanthin, and highly digestible protein.
Compare to Similar Ingredients
- vs. krill oil: Euphausia superba is the whole Antarctic krill organism, while krill oil is just the extracted oil from krill - oil is concentrated omega-3s.
- vs. fish meal: Both are marine protein sources. Krill (Euphausia superba) is tiny crustaceans with omega-3s and astaxanthin, while fish meal is larger fish species.
- vs. shrimp meal: Both are crustacean meals. Krill are smaller plankton from Antarctic waters, while shrimp are larger warm-water crustaceans with similar nutrition.
Why It's Used in Dog Products
Manufacturers include euphausia superba in dog food, treats, and supplements for several reasons:
- Superior omega-3 source (phospholipid-bound for better absorption)
- Natural source of astaxanthin (powerful antioxidant)
- Highly digestible marine protein
- Supports joint, brain, heart, and skin health
- Sustainable marine ingredient
Quality Considerations
When evaluating euphausia superba in dog products, it's important to understand protein density, amino acid profile, digestibility, and sourcing quality. This ingredient's quality and appropriateness can vary significantly based on sourcing, processing, and the specific formula it's used in.
Premium omega-3 source with superior bioavailability compared to fish oil due to phospholipid form. Astaxanthin provides additional antioxidant benefits. Sustainability is good when MSC-certified. More expensive than fish oil but offers unique benefits. Whole krill includes shells (chitin) providing additional fiber.
Potential Concerns
While euphausia superba can be appropriate in dog nutrition, pet owners should be aware of allergies, protein digestibility, and quality variations between named and generic sources. Individual dogs may respond differently to the same ingredient based on their health status, age, and sensitivities.
Premium marine ingredient superior to standard fish oil in many ways. Phospholipid omega-3s are better absorbed, and natural astaxanthin adds antioxidant power. Justifies higher cost for targeted joint, brain, and inflammatory support. Look for sustainably sourced, MSC-certified krill.
Frequently Asked Questions
Is euphausia superba safe for dogs?
Yes, euphausia superba is safe for dogs when used appropriately in properly formulated dog food. As with any ingredient, individual dogs may have sensitivities, so monitor for any adverse reactions when first introducing products containing this ingredient.
What does euphausia superba do in dog food?
Antarctic krill species (Euphausia superba), small crustaceans rich in omega-3s (EPA/DHA), astaxanthin, and highly digestible protein. Dog food manufacturers include this ingredient to provide superior omega-3 source (phospholipid-bound for better absorption) and provide natural source of astaxanthin (powerful antioxidant).
Can euphausia superba cause allergies in dogs?
Any protein source can potentially trigger allergies in sensitive dogs. Signs of food allergies include itchy skin, ear infections, digestive issues, and excessive paw licking. If your dog shows these symptoms, consult your veterinarian about an elimination diet to identify the trigger ingredient.
How much euphausia superba should be in dog food?
Quality dog foods typically list primary protein sources like euphausia superba within the first 3-5 ingredients. The exact percentage varies by formula, but protein-focused foods generally contain 25-35% total protein for adults, and 28-40% for puppies or performance dogs. Check the guaranteed analysis rather than relying solely on ingredient order.
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