Cod vs. Tilapia: Nutrition, Flavor, Sustainability & More (2024)

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Find out which fish is better for your heart health, wallet, and favorite seafood dishes

Co-authored byDan HickeyReviewed byOllie George Cigliano

Last Updated: January 1, 2024Fact Checked

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  • Nutrition
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  • Substitution
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  • Cost
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  • Sustainability
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  • Warnings

There may be plenty of fish in the sea, but cod and tilapia are among the most popular and widely eaten in North America and around the globe. Although these fish share some similarities in taste and nutritional value, they’ve got some important differences to consider before you decide which filet to pick up for dinner. In this article, we’ll break down the nutritional and flavor profiles of each fish, plus compare their cost, sustainability, and more. You might just have a craving for a fresh filet once you’re done here!

Things You Should Know

  • Cod is considered healthier than tilapia because it’s leaner, contains more Omega-3 fatty acids, and has lots of other nutrients like niacin, B vitamins, and choline.
  • Tilapia and cod have a similar taste and texture. Tilapia is slightly sweeter and firmer and can be substituted for cod in a variety of dishes like fish and chips or fish tacos.
  • Tilapia is more sustainably sourced than cod since it’s a freshwater fish that can be farmed in a variety of habitats and feeds on plant-based food.

Section 1 of 6:

Nutrition

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  1. 1

    Cod is leaner and contains healthier fats than tilapia. Although both fish are nutritious, low-calorie options with similar protein content, cod contains higher levels of heart-healthy Omega-3 fatty acids and less fat overall than tilapia. Tilapia, on the other hand, has higher levels of Omega-6 fatty acids, which can promote inflammation, blood clotting, or constricted blood vessels when consumed in excess.[1] Per 3oz (85g) serving:

    • Atlantic cod contains:
      • 70 calories
      • 0.6 g fat (0.1 g saturated fat)
      • 125 mg sodium
      • 0 g carbs, 0 g fiber, 0 g sugar
      • 15.1 g protein
      • 156 mg Omega-3s
      • 70 parts per billion of Mercury
    • Tilapia contains:
      • 81 calories
      • 1.4 g fat (0.5 g saturated fat)
      • 44 mg sodium
      • 0 g carbs, 0 g fiber, 0 g sugar
      • 17 g protein
      • 77 mg Omega-3s
      • 19 parts per billion of Mercury
  2. 2

    Cod is rich in Vitamins B5 & B6, but tilapia has Vitamins B3, B12, & D. Even though cod is considered the healthier option overall, tilapia is no slouch when it comes to packing a nutritious punch full of vitamins and minerals. In addition to B and D vitamins, it contains more selenium, copper, and folates than cod, all of which assist with cell division and energy production.[2]

    • Other valuable vitamins and nutrients that are more abundant in cod include niacin, choline, Vitamins E, A, and C, phosphorus, and potassium.[3]
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Section 2 of 6:

Flavor & Texture

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  1. Cod and tilapia taste similar, but tilapia is slightly sweeter and firmer. Cod is a white fish with flaky meat and a mild, slightly milky flavor. Its texture is very tender, and its meat falls apart into bigger chunks than tilapia’s. The taste of cod isn’t very strong, but Atlantic cod tends to have a sweeter, more recognizable flavor.[4]

    • Tilapia is very mild (some call it flavorless) and has a sweetness similar to a red snapper or striped bass. It tastes less “fishy” than cod and other fish.[5]
    • Tilapia is firmer than cod when cooked, and its meat falls apart into smaller flakes.
    • High-quality farmed tilapia generally taste better than wild tilapia that feed on algae and lake plants.

Section 3 of 6:

Substitution

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  1. 1

    Swap tilapia for cod since it has a similar taste and texture. Because tilapia is so mild, it pairs well with just about any sauce, herb, or spice.[6] This makes it a great fill-in for other white fish like haddock and cod in dishes such as fish and chips, fish tacos, or fish sandwiches. Equal amounts of cod and tilapia will cook in about the same time, meaning you don’t have to adjust recipes for one or the other when you’re substituting.[7]

    • Tilapia is as easy to cook as cod and you can prepare them in the same ways—bake them, fry them, steam them, grill them, and more!
  2. 2

    Choose filets of the same size, weight, and cut if you’re substituting. When you’re shopping for fresh fish, look for cuts of either fish that match what the recipe calls for, such as a 1in (2.5cm) thick filet or a 3oz (85g) filet. This way, you’ll avoid over or undercooking fish (you may still notice the slight difference in taste, though).[8]

    • Tilapia is usually sold as a flat, whole filet since it’s a smaller fish while cod typically comes in a thicker cross-section of a larger filet.
    • Buy filets with the skin on if that’s what the recipe calls for, regardless of which fish you pick. If the filets are sold with skin on, assume the skin is edible.
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Section 4 of 6:

Cost

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  1. Tilapia is generally a few dollars cheaper per pound than cod. In fact, tilapia is usually the cheapest fish you can find at a grocery store or seafood market. Tilapia filets can cost around $4.99 per pound ($11 per kilogram), while cod filets are closer to $9.75 per pound ($21.49 per kilogram).[9]

    • Frozen fish is typically cheaper than fresh fish.
    • Whole fish are cheaper per pound than pre-cut filets, but they contain parts you may not need or want (like bones, skin, or organs).

Section 5 of 6:

Sustainability

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  1. Tilapia is more sustainably farmed and fished than cod. Cod, especially in the Atlantic, was vastly overfished in the 20th century. A near-total collapse of the Canadian wild cod stock in 1992 marked a turning point in cod preservation, and even though populations are slowly recovering, stocks remain low in the US and around the world.[10]

    • Unlike cod, tilapia is largely farm-raised. It adapts easily to varying environments and can be cheaply fed plant-based food.[11]
    • Tilapia is raised in freshwater farms all over the world, especially in China, Egypt, the Philippines, Indonesia, Thailand, Mexico and Brazil.
    • Look for labels from organizations like the Marine Stewardship Council on your fish packaging to see if it was sustainably fished or farmed.[12]
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Section 6 of 6:

Natural Habitat & Appearance

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  1. 1

    Atlantic cod is found in the cold saltwater of the North Atlantic ocean. Cod generally stays near the seafloor on either side of the Atlantic and feeds on other, smaller fish and various invertebrates. It can vary in color from greenish-grayish to brown, blackish, or dull red, and has 3 dorsal fins, 2 anal fins, and a chin barbel. Most caught cod weigh about 25lb (11kg), but the largest varieties can weigh up to 201lb (91kg) and measure 6ft (1.8m) long.[13]

    • Pacific cod look similar to Atlantic cod but are generally smaller (usually up to about 30in (76cm) long).
  2. 2

    Tilapia originated in freshwater, coastal rivers and lakes in Africa. Today, they can be found in freshwater lakes and farms all over the world. They eat a largely vegetarian diet or algae and other freshwater plants, but will eat insects or worms on occasion. Tilapia have a long, unbroken dorsal fine and an anal fin with pointed ends and can be a variety of colors including black, red, gold, or blue.

    • Tilapia are smaller than cod and usually measure up to 18in (46cm) long and weight around 5lb (2.3kg).
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      Warnings

      • Cod and tilapia are great sources of lean protein, but should only be eaten 2-3 times per week to avoid ingesting a high level of mercury.[14]

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      About This Article

      Cod vs. Tilapia: Nutrition, Flavor, Sustainability & More (24)

      Reviewed by:

      Ollie George Cigliano

      Private Chef & Food Educator

      This article was reviewed by Ollie George Cigliano and by wikiHow staff writer, Dan Hickey. Ollie George Cigliano is a Private Chef, Food Educator, and Owner of Ollie George Cooks, based in Long Beach, California. With over 20 years of experience, she specializes in utilizing fresh, fun ingredients and mixing traditional and innovative cooking techniques. Ollie George holds a BA in Comparative Literature from The University of California, Berkeley, and a Nutrition and Healthy Living Certificate from eCornell University. This article has been viewed 12,380 times.

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      Updated: January 1, 2024

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      Categories: Fish and Seafood

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      Cod vs. Tilapia: Nutrition, Flavor, Sustainability & More (2024)

      FAQs

      Cod vs. Tilapia: Nutrition, Flavor, Sustainability & More? ›

      Cod is considered healthier than tilapia because it's leaner, contains more Omega-3 fatty acids, and has lots of other nutrients like niacin, B vitamins, and choline. Tilapia and cod have a similar taste and texture.

      What tastes better, tilapia or cod? ›

      The Taste Test

      As a freshwater fish, Tilapia is not overwhelmingly fishy tasting. It is mild and slightly sweet, perfect for any recipe where other flavors can take center stage. Atlantic cod is also mild, but it has a more distinctive milky flavor.

      What is the nutritional difference between cod and tilapia? ›

      A 3-ounce serving of cooked Atlantic cod boasts 90 calories and just 1 gram of fat for 19 grams of protein. Tilapia is slightly higher in calories, with 108 per 3-ounce cooked portion, and it's also slightly higher in fat, with 2¼ grams of fat. It has a bit more protein, too, at 22 ½ grams per portion.

      Is tilapia sustainably caught? ›

      Tilapia rated a Best Choice by Seafood Watch is the most environmentally sustainable. Farmed tilapia is sustainable when producers have minimal impact on wildlife and the environment.

      Is cod a man-made fish or tilapia? ›

      Tilapia is typically farmed, while cod is wild-caught

      A member of the Cichlidae family of freshwater fish hailing from Africa, and indeed has been raised by humans since ancient Egypt.

      What is the least fishy tasting healthy fish? ›

      Tilapia – tilapia is arguably the mildest tasting fish there is. It's not fishy at all and has a mild sweetness. Tilapia is easy to prepare and goes well with a variety of different flavor profiles. Cod – cod has a mild flavor that's slightly sweet like tilapia.

      What is the tastiest fish to eat? ›

      Your Guide to the Best Tasting Fish
      1. Cod. Cod is one of the more notable options to pick up, but its taste can depend on exactly what type of cod you pick up. ...
      2. Oysters. While not exactly a fish, oysters can be one of the nicer seafoods to pick up. ...
      3. Sole. ...
      4. Salmon. ...
      5. Halibut.

      Why is tilapia not as good for you as other fish? ›

      The bad news for tilapia is that it only contains 240 mg of omega-3 fatty acids per serving — ten times less omega-3 than wild salmon (3). If that wasn't bad enough, tilapia contains more omega-6 fatty acids than it does omega-3.

      What is the healthiest white fish? ›

      Sablefish: This fish stands out as one of the healthiest white fish to eat, offering omega-3 fatty acids and a uniquely buttery flavor.

      What fish is healthier than tilapia? ›

      The most prevalent vitamins in tilapia are vitamin B12 and vitamin K. If your primary concern is vitamins, salmon might be the better choice.

      Why did people stop eating tilapia? ›

      Leads to Arsenic Consumption. In some countries, arsenic contamination in water becomes a major concern as many fish species including tilapia has the potency to accumulate arsenic in their muscle tissues. Eating fish farmed in an arsenic-rich environment augments the risk of cancer development in the consumer.

      Which fish is the most sustainable? ›

      Here are some species that commonly make the list of the most sustainable fish to eat.
      1. Anchovy (wild-caught in Peru, Chile) ...
      2. Pacific cod (wild-caught in Alaska) ...
      3. Arctic char (farmed) ...
      4. Atlantic mackerel (wild-caught) ...
      5. Haddock (wild-caught from the north-east Arctic, Iceland, the North Sea, Irish Sea)
      Jul 16, 2021

      Why is tilapia controversial? ›

      Many people have suspicions about tilapia being "bad" or "dirty," leading many to wonder if the fish is bad for you. That's because tilapia has a reputation for contamination. In the past, some farm-raised tilapia fed on animal waste. However, most farming practices have changed since then.

      What tastes better, cod or tilapia? ›

      Flavor & Texture

      The taste of cod isn't very strong, but Atlantic cod tends to have a sweeter, more recognizable flavor. Tilapia is very mild (some call it flavorless) and has a sweetness similar to a red snapper or striped bass. It tastes less “fishy” than cod and other fish.

      Is tilapia raised in sewage? ›

      Perhaps you've heard that tilapia are raised in cesspools and live on poop? Even the USDA says there is — or, at least, used to be — some truth in that. The agency's 2009 report on Chinese imports notes that "Fish are often raised in ponds where they feed on waste from poultry and livestock."

      Is cod high in mercury? ›

      Choose fish and shellfish that are lower in mercury such as salmon, trout, tilapia, cod, sole, sardines, shrimp, oysters, and other shellfish. For the most health benefits, choose fatty fish such as salmon, trout, herring, chub mackerel, and sardines. o These fish have healthy omega-3 fatty acids.

      Is tilapia or cod better for fish tacos? ›

      The best fish for fish tacos:

      We use cod in this recipe, but any flaky variety (like tilapia) will work just fine. Whatever fish you choose, we highly recommend marinating it in our simple mixture of lime juice, chili powder, and cumin.

      Is tilapia the best fish to eat? ›

      Tilapia is a nutritious food, and it can be part of a healthy and balanced diet. It is a good source of protein and is relatively low in fat. Tilapia is also lower in sodium, calories, and total fat than bacon and other processed meats. However, unlike salmon, tilapia is not particularly high in omega-3 fatty acids.

      What is the closest tasting fish to cod? ›

      A popular choice for fish and chips, haddock is very similar to cod (they are technically related) and can be a seamless stand-in if good cod is unavailable. Delicate and soft, try using haddock in a classic fish chowder.

      Is cod very fishy tasting? ›

      Cod flavor profiles can be described as mild, sweet, and delicate. Its meaty flesh is firm, moist, and flaky, making it perfect for various cooking methods. The flavor of cod is not too fishy, which is why it is a favorite among those not keen on the strong taste of seafood.

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