Health correspondent James Gallagher absorbs more than the recommended daily limit in just one meal to find out how salt affects our bodies. I couldn't resist. This week it was revealed a chicken sandwich is packing as much salt as five McDonald's cheeseburgers - putting it top of a naughty list of more than 500 sandwiches analysed. The sarnie, sold by bakery chain Gail's, contains 6.88g ... [5701 chars]