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Behavioral biologist Gary Beauchamp first observed that cats have no preference for sweets in the late 1970s. Three decades later, he and colleagues at the Monell Chemical Senses Center in Philadelphia figured out why—cats lack sweet taste receptors. Now, the same team reports that many more mammalian species have lost their sweet tooth: seven of 12 species they examined had mutated sweet taste receptors.
The results, published today (March 12) in the Proceedings of the National Academy of Sciences, suggest that loss of taste receptor function in mammals is a widespread phenomenon that independently evolved multiple times, and may be related to carnivorous mammals’ feeding behavior.
“Genes for taste receptors exemplify the saying ‘use it or lose it,’” said Stephen Roper, who studies taste reception at the University of Miami and was not involved in the study, in an email. The current study shows just how malleable the mammalian “taste genome” is, he said.
Originally posted by veritaslibertas
reply to post by soficrow
Couldn't agree more. Made major changes with my diet years ago and not only do I not crave any of the sweets I used to enjoy, I actually can't tolerate them.
Most of the food industry today is in the business of getting people addicted to a drug essentially.edit on 13-3-2012 by veritaslibertas because: (no reason given)edit on 13-3-2012 by veritaslibertas because: (no reason given)