READY-MADE sandwiches can contain as much salt as seven bags of crisps, research has revealed A survey of 140 shop sandwiches for the BBC found some had more than half the recommended daily allowance of salt.

READY-MADE sandwiches can contain as much salt as seven bags of crisps, research has revealed A survey of 140 shop sandwiches for the BBC found some had more than half the recommended daily allowance of salt.

A total of 40% of sandwiches tested by the health lobby group Consensus Action on Salt and Health had 2g or more of salt - or a third of an adult's recommended daily allowance.

The saltiest sandwich was Asda's Extra Special Yorkshire Ham and Hawkes Wensleydale, which contained 4g, or 65% of the recommended daily salt intake.

Pret a Manger's All Day Breakfast, with 3.54g, was next, followed by Tesco's Finest All Day Breakfast, Morrisons' Chicken and Bacon, Sainsbury's Taste the Difference Brunch and Waitrose's Sausage, Egg and Bacon, all with 3.5g of salt.

A bag of Walkers Ready Salted Crisps contains 0.5g of salt, so the saltiest sandwiches contain the equivalent of seven bags of crisps.

The sandwiches with the least salt were Co-op's Healthy Living Tuna and Cucumber and Tesco's Healthy Living Chicken Salad.

Meanwhile, a survey by Which? magazine reveals some sausages and beefburgers are more than 25% fat.

And cooked rice and rusk is used to "bulk up" some sausages which have low meat content.

The survey also found the main ingredient of Morrisons Bettabuy fresh and frozen thick sausages is ... bacon.

Tesco Value frozen sausages have the lowest meat content at 30% - the legal minimum.

Morrisons frozen thick pork and Wall's frozen thick pork sausages have the highest fat content at 25%.

And Birds Eye frozen 100% beef burgers and Tesco frozen Finest Aberdeen Angus burgers are 24% fat.