Farmed Salmon vs. Wild: What We’re Really Eating

A Tail of Two Salmon (haha).

They look the same on ice.
Soft coral flesh, pin bones like threads.
They shimmer beneath supermarket lights: wild or farmed, just labels to most.

But they are not the same.

One swims upstream on instinct alone.
The other swims circles in a cage, its world measured in meters, its days fed by pellets and routine.

This is a story of salmon…not just as food, but as symbol, system, and sacrifice.

Where Wild Begins

Wild salmon are born in rivers.
Freshwater first. Then, they make the treacherous journey to sea, surviving predators, pollution, and shifting currents.

They return years later, impossibly, to the exact stream where they were born.
To spawn. To die. To begin again.

Their life cycle is mystical, yet brutally natural.
It’s written in muscle memory and magnetic fields.

Wild salmon eat:

  • Smaller fish

  • Krill

  • Crustaceans

Their color comes from their diet…astaxanthin, a deep red antioxidant found in shrimp and krill.

What Is Farmed Salmon?

Farmed salmon are raised in net pens…vast underwater cages off the coasts of countries like Norway, Chile, Canada, and Scotland.

They are:

  • Bred for rapid growth

  • Fed processed pellets (often made from other fish, soy, and additives)

  • Given colorants to mimic the red-orange hue of wild fish

  • Crowded together…tens of thousands per pen

  • Often treated with antibiotics or pesticides

They're engineered efficiency.
Not fish. Product.

Nutrition Showdown

At a glance, farmed salmon may seem more nutritious…it’s fattier, which means more omega-3s, right?

Well, yes and no.

Farmed salmon:

  • Has more total fat, but much of it is omega-6 (inflammatory)

  • May contain chemical residues from feed, antibiotics, or contaminated waters

  • Can have less protein by weight

  • Has more saturated fat and calories

Wild salmon:

  • Has less fat overall, but a better omega-3 to omega-6 ratio

  • Is leaner, more flavorful, and dense in nutrients

  • Often contains fewer contaminants (though this depends on species and region)

If you’re eating salmon for heart health?
Wild wins.

If you’re eating for satiety or flavor?
Still wild.

What the Science Says

A 2020 review from Environmental Research showed farmed salmon may carry:

  • Higher levels of persistent organic pollutants (POPs)

  • PCBs (linked to endocrine disruption and cancer)

  • Trace antibiotics

  • Heavy metals, depending on farm location

Farmed fish are also more prone to sea lice outbreaks, which can affect surrounding ecosystems.

The truth?
Farmed salmon is only as clean as its supply chain, and many are murkier than they look.

The Ecological Cost

Farmed salmon may seem sustainable. After all, we’re not depleting wild populations, right?

But the ecological ledger tells a different story:

  • Waste buildup under pens chokes the ocean floor

  • Escaped farmed salmon interbreed with wild ones, weakening genetics

  • Disease outbreaks spread to native populations

  • It takes 2–3 pounds of wild fish to feed 1 pound of farmed salmon

That means we’re not saving the sea.
We’re grinding it down to feed convenience.

Indigenous Knowledge and Salmon's Sacred Role

In many Indigenous cultures, salmon is not just food, it’s spirit.
It’s ceremony. Reciprocity.
A being, not a commodity.

Farmed salmon threatens wild runs that are central to these traditions.
Dams, warming rivers, and industrial fishing have already eroded much of what once thrived.

To choose wild is sometimes to choose remembrance.
Not just of taste, but of relationship.

Related Reads to Deepen This Exploration:

  1. Why Chicken Has Been Tasting Weird Lately

  2. The Great Salad Lie

  3. Ultra-Processed Foods and Cravings

  4. Where Have All The Worms Gone?

  5. Growing Hydroponic Tomatoes at Home

So Why Is Farmed Salmon So Popular?

Because it’s:

Because we want the illusion of health, convenience, and ethics, without the cost.

Because the systems we rely on are built to feed shelves, not souls.

What It Means to Choose

This isn’t a post to shame you for what’s on your plate.

Sometimes wild isn’t available.
Sometimes it’s expensive.
Sometimes it’s a choice between frozen farmed or no fish at all.

But knowing the difference?
Knowing what we’re really eating?

That’s power.
That’s agency.
That’s how change begins.

One plate. One pause. One story.

Previous
Previous

The Science of Nostalgia: Why We Long for Summers That Never Really Existed

Next
Next

The Bacteria Not of Earth: Life Grows Strange on China’s Space Station