The world is awash in advice about diets; eat like the French, eat like cavemen, fast and then eat.
It can make the most conscientious eater feel all at sea.
German science writer Bas Kast wants to offer some direction. .
He found himself trying to negotiate his way through the maze of myths and misinformation about food and diet after collapsing with chest pains.
Pouring over thousands of research papers, he offers a way through the hype in his book, The Diet Compass: the 12-step guide to science-based nutrition for a healthier and longer life.