Bitter and sour taste detectors also say, 'too salty'

Mice that can’t sense the two tastes find high sodium attractive

By Rachel Ehrenberg, 13:03 PM February 13, 2013

Salt has a split personality with its ability to enhance deliciousness or ruin a dish. Now scientists have revealed the underpinnings of salt’s dark side: Heavy doses of the seasoning trigger taste cells that detect bitter and sour flavors.

Mice without working versions of these taste cells find high levels of saltiness appetizing rather than repugnant, scientists report in the Feb. 14 Nature. The mice even liked a salt concentration equivalent to that of sea water.

The researchers don’t...

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