Canned Tuna Vs Fresh Tuna: What's The Nutritional Difference? - Tasting Table
Briefly

Tuna is the palatable, goes-with-everything fish version of chicken. Its oily and juicy texture, paired with that subtle, not-that-fishy flavor, makes it popular with home cooks and chefs alike.
The canned version of tuna, while familiar, is not the only option. Fresh tuna is also enjoyed in sushi or seared salads, offering greater versatility.
When comparing canned tuna to fresh, one ounce of low-sodium canned tuna generally offers a slightly higher nutritional value in some metrics, despite being higher in fat and calories when canned in oil.
With its rich protein content and low-calorie profile, tuna stands out as a healthy snack option, making it the third most popular seafood in the U.S.
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