All of the major supermarkets are now backing latest measures on salt after Tesco signed up to the 2017 salt reduction targets under the Responsibility Deal.

The Department of Health has been struggling to get retailers and suppliers to back its targets, but Tesco has now joined Sainsbury’s, Waitrose and Lidl which all backed the plans in the last few weeks.

More than 30 companies have now signed up to the targets, although its still far short of the 80 signatories who backed the 2012 salt reduction targets under the deal, despite the new targets being revealed six months ago.

Campaign group Consensus Action on Salt and Health had been threatening to “name and shame” companies who refuse to sign up, but it said the decision by Tesco to sign up was a “breakthrough” for the DH.

Aldi, Asda The Co-operative Group and Morrisons have all been on board since July.