Omega-3 fatty acids, found in fatty fish like salmon and in fish-oil supplements like those from Nordic Naturals, benefit the immune system at the most basic level, making cell membranes more fluid so they take in nutrients and remove toxins more efficiently.
Credit: Maria Bacarella / Getty Images
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
The Interpreters We Left Behind
The Rise of Cyclocross
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