据外媒报道，营养丰富、有利健康的蔬果与种子类食品被定位为超级食品。在美国每月大约有25万条关于超级食品的搜索项。
全球搜索营销公司Search Laboratory对搜索结果进行了分析。结果显示，美国人最经常搜索的三种超级食物是：牛油果、羽衣甘蓝和姜黄（Turmeric）。其他深受美国人喜欢的超级食物还包括蓝莓、克菲尔酸奶酒 kefir、杏仁、菜花、椰子、亚麻子和碎小麦（Bulgur）。
部分原文报道如下：
There are so many superfoods, it feels like a new one pops up everyday ― and that's not exactly a bad thing. Superfoods are fruits, vegetables and seeds that are dense in nutrients that can help improve health and wellbeing.
However, some reign supreme over others. In the U.S., there are nearly 250,000 monthly Google searches for superfoods like avocado, kale, turmeric, blueberries, cauliflower and coconut, according to Search Laboratory, a global search engine marketing firm.
原文链接：http://www.huffingtonpost.com/entry/most-popular-superfoods_us_580e4509e4b000d0b157c7cf
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