Over the weekend, the Guardian reported that Britain had gone kale-crazy, with sales of the bitter brassica surging after its endorsement by celebrities such as Gwyneth Paltrow. The United States could have told them that, having already weathered kale-mania in 2012 and 2013, which featured the "all-kale diet," National Kale Day, Bon Appetit's dish of the year being awarded to a kale salad, kale at the White House Thanksgiving and all the trend stories you could eat.
And verily, there's a reason you're noticing it more often in supermarkets.
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