Two studies, published last month in Nature Genetics and Nature Neuroscience report:

“The gene behind the most seductive of taste receptors — sweetness — has been at last identified.”

The New Scientist, UK

Not surprisingly, the studies generated much media interest:

“Can't resist that daily dose of chocolate? Piling on the pounds with puddings? Fear not, you are not suffering from a weak will; you can now blame it on your genes.”

The Times , UK

It might explain why you take “three lumps of sugar in [your] coffee, as opposed to one lump or two.”

The New York Times, US

The good news is that this research could

“Pave the way for a new generation of designer diet foods and even drugs to encourage healthy eating.”

The Times , UK

And, for those who can't resist a snack ...

“Decreasing the activity of this gene may enable people to control their urges to overindulge in sweets.”

The New York Times, US

Having a sweet tooth also makes evolutionary sense.

“Sweet things are high in carbohydrates with a high nutritional value. [Discerning] bitterness also stops you from eating unripe fruit or many poisonous plants.”

The Times , UK

Commenting on the nature of the difference between the receptor in two strains of mouse:

“ 'It seems fitting that the presence or absence of a sugar chain on a sweet taste receptor should determine sensitivity and preference for sweetness in life.' ”

BBC News Online