Farmed salmon may not be as nutritious as it once was, new research suggests

The shift in the fish’s diet is having significant downstream impacts on the environment and climate. That dietary advice has changed the way the world consumes salmon, pushing consumer demand ever upward and production to higher and higher levels. Most of that demand is being met with farmed salmon: Today, nearly 70 percent of the salmon consumed on the planet are raised in pens and cages [1].

Sources

1. arstechnica.com · Farmed salmon may not be as nutritious as it once was, new research suggests Sep 6, 2026

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