Salt

"Salt is a commodity that we cannot do without. Every species of living creature needs the sodium in salt, but through changes during evolution, social groupings and civilisation we now consume far more that we need." "This book explores many themes in a light-hearted fashion. While we can learn from history and we can take advice from scientists, now is, perhaps, the time to listen to advice and evidence from the medical world and not take their words with a pinch of salt!"--Back cover.