Evolution of bitter taste sensitivity
Tuesday, November 12, 2013 - 15:01
in Biology & Nature
People often have strong negative reactions to bitter substances, which, though found in healthful foods like vegetables, can also signify toxicity. For this reason, the ability to sense bitterness likely played an important role in human evolution. A new study suggests that a genetic mutation that makes certain people sensitive to the taste of a bitter compound appears to have been advantageous for certain human populations in Africa.