5 Omega-3 Foods That Match Salmon (No Fish Required)

Fish is the go-to answer for getting enough omega-3. But it isn't part of everyone's diet. 

Maybe it's the smell or texture, maybe you're vegetarian, vegan, or just done swallowing fish oil pills that leave a fishy aftertaste in your mouth for hours. The reason fish keeps getting recommended comes down to one thing: omega-3.  

When it comes to omega-3 foods, salmon wins that comparison for most people. A 3-ounce cooked serving delivers roughly 1.8 grams of EPA and DHA combined. EPA and DHA are the two long-chain omega-3s your body absorbs and uses most easily 1. 

A handful of non-fish foods can match salmon in total omega-3s, just using a different type called ALA. However, your body can't use ALA the same direct way it uses EPA and DHA. Adults need roughly 1.1 to 1.6 grams of ALA a day 1, and the five foods below make that easy to hit without ever touching a fillet.  

Want DHA specifically? Skip ahead to the algal oil section below; it's the one plant-based source that gives it to you directly.  

5 Non-Fish Omega-3 Foods Worth Adding to Your Plate 

Here are five non-fish omega-3 foods that pack real ALA into everyday meals, no fish required: 

1. Flaxseeds 

Omega-3 content: 2.35g ALA per tablespoon (whole seed); 7.26g ALA per tablespoon of oil.1 

Flaxseed is one of the richest whole-food sources of ALA, and it easily outpaces a serving of salmon gram for gram.  

The catch: Whole flaxseeds often pass through your gut intact, so grinding them (or buying pre-ground) is what actually gets you the omega-3s. 

How to use it: Stir a tablespoon into oatmeal, yogurt, or a smoothie. Flaxseed oil works well in salad dressings but skip it for cooking since heat breaks it down. 

2. Chia Seeds 

Omega-3 content: 5.06g ALA per ounce (about 2 tablespoons) 1 

Chia seeds pack more ALA per serving than almost anything else on this list, alongside fiber and plant protein. 

Why it works: Their gel-forming texture when soaked in liquid makes them a natural fit for overnight oats or pudding. 

How to use it: A single ounce sprinkled over breakfast covers most of your daily ALA target in one go. 

3. Walnuts 

Omega-3 content: 2.57g ALA per ounce, about 14 halves.1 

Walnuts are the only tree nut with a meaningful amount of omega-3s. They're one of the richest sources of antioxidant polyphenols among tree nuts. 3 

How to use it: Eat them raw as a snack, toss them into salads, or blend them into a homemade nut butter. 

4. Hemp Seeds 

Omega-3 content: 2.61g ALA per 3 tablespoons (30g) 4 

Hemp seeds offer a naturally balanced ratio of omega-6 to omega-3 fats, plus all nine essential amino acids, a rare combination for a plant food. 

How to use it: Sprinkle them over smoothie bowls or yogurt or blend them into homemade granola for an easy daily boost. 

5. Soybean Oil 

Omega-3 content: 0.92g ALA per tablespoon1 

Soybean oil is one of the most common cooking oils in American kitchens and quietly contributes real ALA to your diet. 

Worth knowing: It's high in omega-6 too, so pair it with the foods above instead of relying on it alone. 

How to use it: Sauteing, baking, or as a dressing base.

Salmon vs. Plant Foods: Omega-3 Comparison Chart 

Here's how these foods high in omega-3 stack up against salmon side by side 1: 

Algal Oil: The Vegan Source of Real DHA 

Every plant food listed on the table above is ALA, not EPA or DHA. Your body converts less than 15% of ALA into those two forms. 1 That means the foods above cover your ALA needs well but won't fully replace the DHA salmon gives you directly. 

Best fix: algal oil, made from the same microalgae fish get their omega-3s from. 

Proven effective: DHA from algal oil is absorbed just as well as DHA from fish oil. 2  

Take it if: You're vegan, vegetarian, or rarely eat fish. 

The Bottom Line 

You don't need fish to hit your omega-3 targets. Flaxseed, chia seeds, walnuts, hemp seeds, and soybean oil are all omega-3-rich foods that deliver real, measurable amounts of ALA. Several of them rival or even beat salmon by the numbers.  

Just remember that ALA and the EPA/DHA in salmon aren't interchangeable, so if you're going fully fish-free, an algal oil supplement is worth considering to round things out. 

Frequently Asked Questions 

Q1: What's the difference between omega-3 and omega-6 fats? 

Both are essential fats, but they come from different sources. Omega-3s are found in foods like flaxseed, chia, and fish, while omega-6s are found in vegetable oils like soybean and corn oil. Most people already get plenty of omega-6 through daily cooking oils, so the goal with omega-3 is catching up, not cutting omega-6 out. 

Q2: Does cooking affect the omega-3 content of these foods? 

Yes, to a degree. Omega-3s in oil form, like flaxseed oil, are sensitive to heat and can break down at high temperatures. Whole seeds and nuts hold up better during cooking than oils do. 

Q3: Are omega-3 supplements as good as getting it from food? 

Both have a place. Whole foods bring extras supplements don't, like fiber and protein from seeds and nuts, while supplements make it easier to hit a specific EPA or DHA target if food alone isn't cutting it. 

Q4: Which omega-3 food should you start with first? 

Chia seeds are the easiest entry point. No prep needed, mild flavor, and one ounce covers most of your daily ALA target in a single serving. Ground flaxseed is a good next addition once chia becomes routine. 

Q5: Is it possible to take too much omega-3? 

There's no established upper limit for omega-3s, and the FDA considers up to 3g per day of combined EPA and DHA generally safe 1. Very high doses, in the 2-15g per day range, may increase bleeding risk, so it's worth checking with a doctor before going that high. 

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