 Hello, I'm Claudia Hammond, and I'm here with an audience at Welcome Collection in London. In the second part of the evidence, we'll be finding out how much salt we should be eating in our diets to make sure we have some, but not so much, that we might increase our blood pressure and raise the risk of having a heart attack or stroke. My expert panel have the latest evidence at their fingertips to help us to live healthier lives. Do join me after the BBC News to discover the power of salt.