Device uses a weak current to artificially amplify the taste of salt, as part of efforts to reduce sodium levels in popular dishes

Diners in Japan could soon be able to savour the umami of a bowl of ramen or miso soup without having to worry about their salt intake.

In what they claim is a world first, researchers have developed chopsticks that artificially create the taste of salt, as part of efforts to reduce sodium levels in some of the country’s most popular dishes.