Action on Salt & Sugar, which analysed 546 sandwiches, said it was "alarming" how much salt was in them and that people should not be exposed to a "hidden health risk every time they buy lunch".
James Gallagher is a Health and Science Correspondent at BBC News. He covers a range of topics including medicine and healthcare, alternative medicine, and the intersection of AI and machine learning with health, frequently presenting insights on consumer health and global economic impacts. James has been featured in numerous publications, including Lexology, The Fresno Bee, and Nature Portfolio.












