The late Dr Michael Mosley once hailed a diet that could help ward off Alzheimer's. And studies show you could delay the progression of the disease by almost four years. The much-loved expert , who popularised the Fast 800 diet, praised the Mediterranean diet's benefits. The Fast 800 website explains: "Research shows that a moderately low carbohydrate, Mediterranean-style diet has the unique power to restore your body’s ability to reach its ideal weight and stay there, as well as reduce your