The National Farmers’ Union (NFU) says Tesco and Morrison’s have now signed up for the Conservatives’ Honest Food campaign.

The new labeling program aims to inform consumers where purchased food is reared and sourced.

Current labeling laws cover where the food is manufactured, and on most foods, labeling is only required if it is possibly misleading. However, the Honest Food campaign, endorsed by the NFU, wants new rules that require country of origin labels on meats and dairy products.

Retailers Sainsbury’s, Waitrose and Marks and Spencer also have signed onto the campaign.