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Welcome to the ultimate guide to the best fish for keto! If you’re following the ketogenic diet or considering it, you’re probably already familiar with its low-carb, high-fat principles. But did you know that fish can be a superstar in your keto meal plan?
In this comprehensive guide, we’ll dive into why fish is perfect for keto, explore the best options for both oily and lean fish, discuss the benefits of small fish and shellfish, and provide tips on combining fish with keto-friendly sides. Let’s get started!
Why Fish is Perfect for Keto

Fish is not only delicious but also incredibly nutritious, making it an ideal choice for anyone following a ketogenic diet.
Packed with high-quality protein, heart-healthy fatty acids, and essential nutrients, fish offers a wide range of health benefits while keeping your carbohydrate intake low. Plus, it’s versatile and easy to prepare, making it a staple in any keto kitchen. (1)
Best Oily Fish for Keto

1. Salmon
Whether you prefer wild or farmed, salmon is a powerhouse of nutrition. Rich in omega-3 fatty acids and vitamin D, wild salmon is a top choice for keto dieters looking to boost their intake of healthy fats. Try it roasted with vegetables or in delicious salmon cakes for a satisfying meal. (2)
2. Mackerel
Atlantic mackerel is another fatty fish that deserves a spot on your keto menu. With its rich flavor and flaky texture, mackerel is perfect for grilling or tossing into salads. Plus, it’s packed with heart-healthy fatty acids and essential vitamins and minerals. (3)
Best Lean Fish for Keto

1. Tuna
Whether you’re craving fresh tuna steaks or convenient canned tuna, this lean fish is a keto-friendly option that’s high in protein and low in fat. Enjoy it grilled with a flavorful chimichurri sauce or stuffed into an avocado for a quick and satisfying meal.
2. Flaky White Fish
Cod, haddock, and tilapia are excellent choices for keto dieters looking for a mild-flavored fish with a flaky texture. These versatile options can be baked, pan-fried, or even breaded with almond flour for a delicious low-carb dinner.
Small Fish with Big Benefits

1. Anchovies
Don’t overlook these tiny fish—they pack a big punch when it comes to flavor and nutrition. Rich in omega-3s and calcium, anchovies are perfect for adding a savory kick to salads, dressings, or keto-friendly pizzas. (4)
2. Sardines
Sardines are not only tasty but also incredibly nutritious, thanks to their high omega-3 content. Enjoy them on keto-friendly bread or mixed into zucchini noodles for a quick and satisfying meal. (5)
Shellfish Options for Keto

1. Shrimp
Shrimp is a keto dieter’s dream, offering high-quality protein and virtually no carbs. Whether you prefer them grilled, sautéed, or tossed into a salad, shrimp is a versatile option that’s sure to satisfy your seafood cravings.
2. Lobster and Crab
Try these luxurious shellfish options without guilt—they’re rich in protein and essential minerals. Try lobster with a decadent butter sauce or whip up some crab cakes for a special keto-friendly dinner.
Combining Fish with Keto-Friendly Sides
Pair your favorite fish with keto-friendly sides like non-starchy vegetables and healthy fats for a well-rounded meal.
Whether you’re steaming spinach, roasting cauliflower, or sautéing zucchini noodles, there are endless ways to enjoy fish on the keto diet.
Don’t forget to add a drizzle of olive oil or coconut oil for an extra boost of healthy fats!
Sustainability and Choosing the Best Quality Fish

When shopping for fish, it’s essential to choose sustainable options to protect our oceans and ensure the long-term health of fish populations. Look for certifications like MSC (Marine Stewardship Council) or ASC (Aquaculture Stewardship Council) to ensure you’re making environmentally responsible choices.
Conclusion: What is the Best Fish for Keto?
In conclusion, fish is a fantastic choice for anyone following a ketogenic diet. From fatty fish like salmon and mackerel to lean options like tuna and flaky white fish, there’s something for everyone to enjoy.
Incorporating fish into your keto meal plan can help you lose weight, improve your overall health, and reduce your risk of chronic diseases.
So why wait? Dive into the world of seafood and discover a whole new world of flavor and nutrition on your keto journey!
FAQs
Which fish is lowest in carbs?
The fish lowest in carbs is typically flaky white fish like cod, haddock, or tilapia. These options are high in protein and low in carbohydrates, making them perfect for a keto diet while still providing essential nutrients. Enjoy them grilled or baked with a drizzle of olive oil for added flavor.
Can you eat fish everyday on keto?
Yes, you can eat fish every day on keto! Fish is a fantastic source of protein and healthy fats, making it an excellent choice for anyone following a ketogenic diet. Just be sure to vary your selection to ensure you’re getting a wide range of nutrients and flavors in your meals.
Are all fish keto friendly?
While most fish are keto-friendly, some varieties are higher in fat and better suited for a ketogenic diet. Fatty fish like salmon, mackerel, and tuna are excellent choices as they’re rich in omega-3 fatty acids and provide essential nutrients. However, even lean fish can be enjoyed in moderation on keto.
What seafood is not keto?
Seafood that is not keto-friendly typically includes breaded or battered options like fish sticks or fried seafood. These preparations can add significant amounts of carbohydrates, making them less suitable for a ketogenic diet. It’s best to opt for grilled, baked, or sautéed seafood without added breading or sugary sauces to stay on track with your keto goals.
What to Read Next?
Ali Webster is a seasoned researcher, communicator, and Registered Dietitian with a diverse background encompassing government, nonprofits, academia, and health care. The core belief is that science should be made accessible, understandable, and relevant to all individuals, driving the motivation behind their work. Proficient in conducting and interpreting research to shape nutrition policy decisions, the individual also excels in nutrition and health communication, consumer research survey development and implementation, and clinical nutrition. Holding a Doctorate of Philosophy with a focus on Nutrition and Epidemiology from the University of Minnesota, their dietetic internship emphasized medical nutrition therapy.