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The evolutionary significance of sickly bitter tastes

作者:宓腮旄    发布时间:2019-03-07 03:20:02    

CAN’T stand the bitter taste of gin and tonic? Blame your ancestors. One of the first studies of the link between strong tastes and nausea confirms that only bitter tastes – not sweet, salty or umami tastes – commonly induce nausea. The queasiness might be an adaptation to alert us to the presence of toxins, which are often bitter, says Paul Breslin at the Monell Center in Philadelphia, Pennsylvania. His team asked 63 volunteers to taste intensely bitter sucrose octaacetate. Afterwards, 65 per cent of them felt nauseous. But none felt queasy after tasting an intensely sweet solution,

 

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