Spending a year eating an all-fish diet

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Omega-3s, those fatty acids found in anchovies, walnuts, chia seeds, and sardines, are supposed to make your heart pump stronger, your brain think sharper, and have turned into a multibillion dollar supplement industry. In researching his latest book, “The Omega Principle,” best-selling author Paul Greenberg spent a year eating a fish-focused diet and discovered that doing so is good for the health of both our body and our planet.

Paul Greenberg’s latest book is “The Omega Principle.” Photo courtesy of Penguin Random House.



Evan Kleiman