Dale told me that if you want to understand what's really going on here, you should look out across the world at the places where people are physically and mentally fitter than we are, with lower levels of diagnosed ADHD and dementia. If you do that, he said, at first it'll seem puzzling, because the diets they eat are actually very different some of them are heavy on fish, some have very little fish; some have a lot of plants, some don't have many plants; some have lots of carbohydrates and some have none at all. If you're looking for a magic ingredient, you won't find it. But "there's one thing that unifies every single one of them. They're all leaving out the crap that's making us sick in the first place. They're all leaving out the refined carbohydrates, the processed food, the junk oils. They're all building their foundations on whole foods.... That's the key. That's the magic bullet -just go back to whole foods. Foods as they were originally intended." He quoted Michael Pollan, who says we should eat only food that our grandparents would have recognized as food, and we should shop primarily around the outer edges of the supermarket- -the fruit and veg at the front, and the meat and fish at the back. The stuff in the middle, he warned, isn't really food at all.

— Stolen Focus by Johann Hari (Page 197)