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Farmed salmon may not be as nutritious as it once was, new research suggests
Eat more fatty fish.
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.
The US Department of Agricultureβs Dietary Guidelines for Americans recommend eating at least 8 ounces of fish a week and urges people to choose salmon or other species that are similarly high in βheart-healthyβ Omega-3 fatty acids. But new research led by USDA scientists finds that levels of these fatty acids in farmed salmon have dropped considerably, potentially making the agencyβs own advice, and similar recommendations, including from the American Heart Association, outdated and insufficient.


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Ancient DNA Rewrites Story of Enigmatic βAmerican Cheetahβ
For several decades, paleontologists have described Miracinonyx trumani -- an extinct species of cheetah-like felid that roamed the North American prairies and steppe terrains more than 13,000 years ago -- as North Americaβs answer to the African cheetah (Acinonyx jubatus).
The post Ancient DNA Rewrites Story of Enigmatic βAmerican Cheetahβ appeared first on Sci.News: Breaking Science News.