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What Are the Healthiest Canned Fishes? A Nutritional Guide

4 min read

According to nutrition experts, a high percentage of Americans do not eat the recommended amount of fish each week, making canned fish a convenient and affordable alternative. But with so many options available, it is essential to know which ones offer the most significant health benefits.

Quick Summary

This guide ranks the healthiest canned fish options based on nutritional density, omega-3 content, and low mercury levels. Learn how to choose the best varieties for a balanced diet.

Key Points

  • Sardines are an all-star: Rich in omega-3s, calcium (with bones), and vitamin D, and contain very low levels of mercury.

  • Mackerel offers a major omega-3 boost: Provides exceptionally high levels of omega-3s, particularly Atlantic or Pacific chub varieties.

  • Canned salmon adds calcium: When prepared with edible bones, canned salmon is a significant and easily absorbed source of calcium.

  • Choose light tuna over albacore: Light tuna (skipjack) has significantly lower mercury levels than albacore, making it a safer option for more frequent consumption.

  • Always check the packing liquid: Opt for fish packed in water or extra virgin olive oil to better control calorie and sodium intake.

  • Consider sodium with anchovies: While packed with nutrients, canned anchovies are high in sodium and best used as a flavor enhancer.

  • Canned fish can be more nutritious than fresh: The canning process can make bones edible and increase calcium content, surpassing fresh fillets in some aspects.

In This Article

Your Nutritional Powerhouse: The Healthiest Canned Fish Options

Canned fish is a convenient, budget-friendly, and nutrient-dense food that can be a powerful addition to any diet. Beyond the familiar tuna, many other canned varieties offer unique and impressive nutritional profiles. Prioritizing options that are rich in heart-healthy omega-3 fatty acids, packed with protein, and low in mercury is key to maximizing their benefits.

Top Contenders for Nutritional Value

Sardines

Sardines consistently rank as one of the healthiest canned fish options for several compelling reasons. These small, oily fish are exceptionally rich in omega-3s (EPA and DHA), which are vital for brain and heart health. When canned with their small, edible bones and skin, sardines also become a powerhouse of calcium, providing a significant boost to bone strength. They are also naturally low on the food chain, which means they contain very low levels of mercury compared to larger predatory fish.

  • Wild Planet Wild Sardines in Water, No Salt Added: An excellent sustainable choice, packed with omega-3s, calcium, and protein.
  • King Oscar Wild Caught Sardines in Extra Virgin Olive Oil: Offers tender, flavorful fillets that are rich in nutrients.

Mackerel

Often overlooked, mackerel is a nutritional star that deserves a place in your pantry. It is even higher in omega-3s than some other popular options, providing a massive boost to heart and brain function. Mackerel is also rich in selenium and Vitamin B12. Like sardines, Atlantic or Pacific chub mackerel are considered low-mercury choices.

Canned Salmon

Another excellent source of omega-3s, canned salmon is a nutritious and affordable alternative to fresh fillets. The canning process makes the bones soft and digestible, allowing you to consume them for a significant amount of calcium, phosphorus, and Vitamin D. Look for wild-caught options, such as sockeye or pink salmon, which are generally more sustainable and lower in potential contaminants.

Anchovies

These small, salty fish are intensely flavorful and nutrient-rich, delivering ample protein, omega-3s, calcium, and Vitamin B12. However, canned anchovies are famously high in sodium, so they should be used in moderation as a seasoning ingredient rather than a main component.

Light Tuna (Skipjack)

For those who prefer tuna, canned light tuna (typically skipjack) is a better choice than albacore. Skipjack tuna are smaller and younger when caught, resulting in significantly lower mercury levels. While it contains less omega-3s than salmon or sardines, it remains a great source of lean protein, selenium, and iron.

Making the Best Choice for You

When navigating the canned fish aisle, remember that the packing medium matters. Fish packed in water or extra virgin olive oil is generally preferable. Water-packed is lower in fat and calories, while olive oil adds healthy monounsaturated fats. Avoid fish packed in less healthy blended vegetable oils. Always check the sodium content, as it can vary widely between brands, especially in flavored varieties.

A Quick Comparison of Canned Fish

Feature Sardines Atlantic/Chub Mackerel Canned Salmon (with bones) Light Tuna (Skipjack)
Mercury Levels Very Low Low Very Low Low
Omega-3s (EPA+DHA) High Very High High Lower
Calcium Very High Low Very High Low
Protein High High High Very High
Sodium Variable, check label Variable, check label Variable, check label Variable, check label
Sustainability Excellent Good (for Atlantic/Chub) Good (if Wild-Caught) Better than Albacore

Conclusion: More than Just Tuna Salad

By diversifying your canned fish choices beyond just tuna, you can access a wider range of health benefits. Sardines and mackerel are omega-3 champions, while canned salmon provides a significant calcium boost. Even smaller amounts of anchovies can add a flavorful nutrient punch. The key is to be mindful of mercury levels, packing liquids, and sodium content to ensure you're making the healthiest choice possible. These convenient, shelf-stable items are a great way to meet your weekly fish intake recommendations efficiently and affordably. For more information on mercury levels in seafood, consult the official guidance from the U.S. Food and Drug Administration (FDA) and Environmental Protection Agency (EPA) on eating fish and shellfish.

How to Incorporate Healthy Canned Fish

  • Salad Toppers: Flake sardines, salmon, or mackerel over a bed of greens with a lemon vinaigrette.
  • Sandwiches and Wraps: Use canned salmon or light tuna in place of deli meats for a protein-packed meal.
  • Pasta Dishes: Melt a few anchovy fillets into a tomato-based sauce for a rich, savory depth of flavor.
  • Crackers or Toast: Mash sardines with mustard, capers, and a squeeze of lemon for a quick, nutritious snack.
  • Fishcakes: Create easy and delicious fishcakes using canned salmon, mashed potatoes, and herbs.
  • Omelets and Scrambles: Mix sardines or mackerel into your morning eggs for an omega-3 boost.

Remember to choose wild-caught, sustainably sourced fish packed in water or extra virgin olive oil whenever possible. This simple step can elevate both the nutritional value and flavor of your canned fish dishes.

Official FDA Guidance on Mercury Levels

Frequently Asked Questions

Yes, canned fish is very comparable in nutritional value to fresh fish. In fact, canned fish varieties like salmon and sardines that include edible bones are often higher in calcium than their fresh counterparts.

Canned light tuna, typically skipjack, is the healthiest option. It comes from smaller, younger fish with much lower mercury levels than canned albacore or white tuna.

No, sardines are not high in mercury. As small, forage fish low on the food chain, they have one of the lowest mercury concentrations of all seafood.

For lower-mercury options like sardines, salmon, and light tuna, health experts recommend two to three servings per week. Higher-mercury choices like albacore tuna should be limited to about one serving per week.

Choosing between oil or water depends on your dietary goals. Fish packed in water is lower in calories, while fish in extra virgin olive oil adds healthy fats. Both are good options, but it's best to avoid fish in low-quality vegetable oil blends.

Yes, pregnant women are advised to consume 2-3 servings of low-mercury fish per week, which includes canned light tuna, salmon, and sardines. This provides essential omega-3s for fetal development.

Canned fish is an excellent source of several key nutrients, including protein, heart-healthy omega-3 fatty acids, Vitamin D, Vitamin B12, and often calcium and selenium.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.