Sardines vs Salmon: A Complete Comparison

Of the thousands of different types of fish out there, salmon and sardines are two very popular varieties. Although widely sought after sardines and salmon have many differences.

Salmon are fresh and saltwater fish while sardines are saltwater. Salmon are larger and weigh more than sardines. The average salmon is 28-30 inches long while sardines range from 6-12 inches. Salmon contains less calories, total fat and sodium than sardines. Canned salmon costs a little more than canned sardines.

This article will examine their differences in complete detail. Included is a side-by-side comparison of all their nutrients. In addition, I’ll compare their benefits, tastes, textures, mercury levels and costs.

Sardines and Salmon Nutrient Comparison

For the nutrient comparison, the table below compares 4 ounces of raw salmon to 4 ounces of sardines. The sardines are canned, packed in water, boneless and skinless.

Sardines are extremely perishable, which is why it’s difficult to find them fresh. Almost everywhere, you’ll find them canned which is why I compare the canned sardines first. Down further, I compare canned sardines to canned salmon.

Nutrient Sardines, raw Canned

(4 Ounces)

Salmon, rawFresh

(4 Ounces)

Calories 210 161
Fat 12 g 7.2 g
Saturated Fat 3.0 g  1.1 g
Cholesterol 69 mg 62 mg
Protein 24 g  23 g
Sodium 469 mg 50 mg
Omega-3 1.65 g  1.95 g
B-6 0.1 mg  0.9 mg
B-12 10.2 mcg  3.6 mcg
Thiamin 0.05 mg 0.20 mg
Riboflavin 0.26 mg 0.40 mg
B5 0.6 mg 1.8 mg
Iron 2.6 mg 0.9 mg
Niacin 4.7 mg  8.9 mg
Folate 27.2 mcg  28.3 mcg
Potassium 386 mg  555 mg
Magnesium 38 mg  32 mg
Phosphorus 415 mg  226 mg
Calcium 272.1 mg  13.6 mg
Zinc 1.5 mg 0.7 mg
Selenium 46.0 mcg  41.4 mcg

Nutrition Sources 1 2

Both fish have a good amount of various vitamins and minerals. They both have a high percentage of omega-3 fatty acids. Therefore, are sardines healthier than salmon?

Fresh salmon is healthier than canned sardines due to its higher number of omega-3 fatty acids. Fresh salmon contains less calories, total fat, saturated fat, cholesterol and sodium than canned sardines. In addition, fresh salmon provides more B6, thiamin, riboflavin, B5, niacin, folate and potassium. 

Sardines contain more vitamin D, iron, magnesium, phosphorus, calcium, zinc and selenium. Although less than salmon, sardines contains a good number of omega-3 making it a healthy fish to consume.

Canned Salmon vs Canned Sardines: Nutrition Values

For those who are interested in canned salmon vs canned sardines, I put together a table of their nutrients. I included red and pink salmon.

Nutrient Sardines, raw Canned

(4 Ounces)

Red Salmon, rawCanned

(4 Ounces)

Pink Salmon, rawCanned

(4 Ounces)

Calories 210 189 156
Fat 12 g 8.4 g 5.7 g
Saturated Fat 3.0 g 1.6 g 1.0 g
Cholesterol 69 mg 90 mg 94 mg
Protein 24 g 27 g 26 g
Sodium 469 mg 463 mg 432 mg
Omega-3 1.65 g 1.67 g 1.38 g
B-6 0.1 mg 0.1 mg 0.1 mg
B-12 10.2 mcg 6.2 mcg 5.6 mcg
Thiamin 0.05 mg 0.03 mg 0.03 mg
Riboflavin 0.26 mg 0.24 mg 0.22 mg
B5 0.6 mg 0.6 mg 0.6 mg
Iron 2.6 mg 0.7 mg 0.8 mg
Niacin 4.7 mg 8.6 mg 8.4 mg
Folate 27.2 mcg 4.5 mcg 4.5 mcg
Potassium 386 mg 356 mg 377 mg
Magnesium 38 mg 35 mg 36 mg
Phosphorus 415 mg 356 mg 429 mg
Calcium 272 mg 263 mg 320 mg
Zinc 1.5 mg 0.9 mg 1.0 mg
Selenium 46.0 mcg 38.9 mcg 44.8 mcg

Comparing canned sardines to canned red salmon we may come to a different conclusion on which fish is healthier. Let’s answer the question, which canned fish is the healthiest?

Canned sardines are healthier than canned salmon due to its higher percentage of vitamins and minerals. Canned sardines provide a higher number of B12, thiamin, riboflavin, iron, folate, potassium, magnesium, phosphorus, calcium, zinc and selenium.

Canned sardines contain a similar number of omega-3 fatty acids as canned red salmon but more than canned pink salmon 3. They contain similar amounts of sodium, B6 and B5.

Canned red salmon 4 contains less calories, total fat and saturated fat than canned sardines. It provides more niacin and a little more protein.

How does canned salmon compare to frozen salmon? I compare the two in this article, Frozen Salmon vs. canned Salmon: Which Is Healthier?

Sardines: Health Benefits

Sardines are at the top of the list of fish with major health benefits. While both sardines and salmon contain a multitude of vitamins and minerals, sardines do contain more B12 vitamins than salmon.

A serving of sardines will provide your heart with 1.65 grams of omega-3 fatty acids. That number is one of the highest levels you can get in a fish 5.

Sardines also contain large amounts of Vitamin D, which is one of the vitamins keeping your bones strong and healthy. They also have copious amounts of sodium, zinc, magnesium, calcium, iron, and several other minerals.

The only thing to watch for when eating sardines is the higher sodium levels, which could negatively affect people with any sort of hypersensitivity to sodium. Be mindful of the sodium quantity in the sardines you choose to purchase.

With no carbohydrates, lots of proteins and plenty of healthy fats, sardines seem to be a great kind of healthy food to incorporate into your diet 6.

They have a full, oily flavor that may be a little difficult to get used to at first. Although the oils and other nutrients they contain are healthy and necessary for a balanced diet.

At the end of the day, sardines are definitely a healthy choice when eaten in the right quantities. They can usually be found at grocery stores, though they are only usually found in one form: Canned rather than fresh.

Salmon, on the other hand, can be found in several forms with several cuts. Let’s take a good look at what else salmon has to offer.

sardines in a bowl

Salmon: Health Benefits

Like sardines, salmon have many health benefits. In fact, they’re some of the healthiest fish out there! As mentioned before, salmon is rich in nutrients and vitamins B5, B6, thiamin, riboflavin, niacin, folate and potassium.

The high amounts of B vitamins found in salmon are a great way to keep your DNA and blood cells healthy. Additionally, the omega-3 fatty acids in salmon will significantly decrease your risk of contracting diseases like cancer, dementia, cardiovascular disease and several others as well that are common.

In addition, omega-3 fatty acids lower the risk of heart attack, stroke and help maintain healthy blood vessels 7.

Both salmon and sardines contain good amounts of potassium, but the salmon has almost 44% more. Potassium is beneficial for combating high sodium intake because it helps the body reduce fluids and rids excess sodium 8.

In addition, potassium helps the blood vessel walls to relax. This is important because a stiffer blood vessel makes the heart pump harder and increases blood pressure.

A large number of scientific studies have shown an association between low potassium levels and higher blood pressure 9.

Just as with sardines, you don’t want to overinflate your diet with salmon. There is a lot it can do for you as far as health is concerned, but exercise a little bit of caution.

Salmon is widely consumed while it’s raw, mostly in Japanese foods like sushi. Raw salmon is cleaned and decontaminated but farmed salmon does occasionally come with a risk of contamination and toxicity.

This is particularly dangerous if ingested in high quantities. Plus, salmon contains some mercury, so just watch your intake and you should be okay. Find out more about mercury in the section below which examines the FDA’s recommendations for both fish.

I wrote another article comparing two salmon powerhouses, Keta and Sockeye. How does sockeye compare in this battle? Check it out here, Keta vs Sockeye Salmon: What’s The Difference?

Sardines or Salmon: Which One Has More Mercury?

Mercury levels are a concern, especially for infants and young developing children. Mercury can have a negative affect on physical and mental development. Pregnant women or those breast feeding should monitor their consumption.

The Food and Drug Administration and the Environmental Protection Agency (EPA) have issued warnings regarding mercury levels. They also provide recommendations about how often people should consume 10.

The FDA established a list of best choices, good choices and ones to avoid. Therefore does salmon or sardines have more mercury?

Sardines have less mercury than salmon but both fish are listed on the FDA’s best choices of fish to consume regarding their mercury levels. They recommend consuming them no more than two to three servings a week.

Always check with a physician prior to eating new foods or changing your dietary habits.

If you’re interested in finding out how the coho salmon compared to king salmon, check out my article here, Coho Salmon vs King: What’s The Difference?

Sardines and Salmon: Tastes and Textures

Unlike sardines, salmon has a rich, buttery flavor and is tender when cooked. The tender flesh is easy to cut and even easier to eat. Wild caught has a leaner texture than farm-raised salmon.

Sardines have a much more firm texture, but salmon will melt in the mouth if prepared the right way. Sardines are chewy without the flaking. Sardines have a fishy taste, more than salmon.

Canned sardines taste more salty and fishier than fresh sardines. The taste of canned sardines can change depending on how they’re packed.

Find out how sardines compared to sprats in my article, Sprats vs Sardines – Are They Different? Let’s Compare.

Sardines and Salmon Sizes, Weight and Habitat

One major difference between sardines and salmon is their size. Sardines (which are a part of the herring family) are tiny fish found in dense schools in the ocean, usually on the coast. They have no dorsal fin and no scales on their heads.

Sardines typically range in size from 6-12 inches long. They don’t usually grow to be more than twelve inches and most are less than nine inches. The European or South American Pilchard which can grow up to 15 inches 11.

In the United States there are two species, the Atlantic and Pacific Sardines 12. Sardines are found in shallow coastal waters and subtropical oceans worldwide.

Salmon are freshwater and saltwater fish. They are born in fresh-water rivers or streams. When they get older, salmon transition to the ocean. They come back to the river during spawning seasons. This cycle repeats at least once every year 13.

The average size salmon is 28-30 inches long and weighs 8-12 pounds. King salmon is the largest and can grow up to 58 inches 14.

Sardines and Salmon Costs

When purchasing salmon or sardines, be sure to check the label to see if it is wild-caught, farm raised, whole or boneless and skinless. Therefore, which is more expensive, canned sardines or canned salmon?

Canned wild salmon is more expensive than canned wild sardines. The average cost for wild canned salmon is 0.70¢ per ounce while the average cost for wild canned sardines is 0.66¢ per ounce.

I checked my local Shoprite supermarket  and found the following prices for canned salmon and canned sardines:

  • Canned wild red salmon (skinless and boneless)
    • $1.00 per ounce
  • Canned wild pink salmon (skinless and boneless)
    • 0.40¢ per ounce
  • Canned sardines in olive oil (skinless and boneless)
    • 0.38¢ per ounce
  • Wild canned sardines in olive oil (skinless and boneless)
    • 0.66¢ per ounce
  • Wild canned in lemon (skinless and boneless)
    • 0.66¢ per ounce


Do canned sardines have omega-3? Canned sardines does contain omega-3 fatty acids. There are 1.65 grams of omega-3 per four ounces of canned salmon.

Read Next – More Salmon & Fish Articles!

Anchovies vs Sardines: What’s The Difference? Let’s Compare

Herring vs Sardines – What’s The Difference? Let’s Compare

Rainbow Trout vs Salmon: Is One Better?

Steelhead vs Salmon: Which Is Better?

Sea Bass vs. Salmon: Which Is Better?

Tilapia vs Salmon: A Comparison

Article Resources: Foods For Anti-Aging follows strict guidelines to ensure our content is the highest journalistic standard. It's our mission to provide the reader with accurate, honest and unbiased guidance. Our content relies on medical associations, research institutions, government agencies and study resources. Learn more by reading our editorial policy.
  1. Nutrition Value: Fish, raw, wild, Atlantic, salmon[]
  2. Nutrition Value: Sardines, packed in water, boneless, skinless[]
  3. Nutrition Value: Fish, drained solids, canned, pink, salmon[]
  4. Nutrition Value: Fish, drained solids, canned, sockeye, salmon[]
  5. Cleveland Clinic: 3 Healthiest (and Worst) Fish For Your Health[]
  6. National Center for Biotechnology Information: Effects of sardine-enriched diet on metabolic control, inflammation and gut microbiota in drug-naïve patients with type 2 diabetes: a pilot randomized trial[]
  7. National Center for Biotechnology Information: Benefits of salmon eating on traditional and novel vascular risk factors in young, non-obese healthy subjects[]
  8. American Heart Association: How Potassium Can Help Control High Blood Pressure[]
  9. Harvard Health: Potassium lowers blood pressure[]
  10. FDA: Advice about Eating Fish[]
  11. Wikipedia: Sardine[]
  12. NOAA Fisheries: Pacific Sardine[]
  13. The University Of Maine: Maine Seafood Guide – Salmon[]
  14. USGS: How many species of salmon are there and how large can they get?[]

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