Yes this is a lightweight book, yes it is an introduction but it isn't written in obscure science speak, it didn't bombard me with statistics, instead it argues that by reducing the diversity of our foodstuffs we're asking for trouble. Having recently discovered a mutual hate agreement with Gluten I was dismayed to find the number of foodstuffs adulterated with it. By having to face up to it I've also had to face up to a few of the questions he's asking here. Why is it that our foodstuffs have become so boring and so overladen with rubbish and laden with weasel words. He also proposes a manifesto for how to buy foodstuffs. His manifesto boils down to "Eat Food. Not too much. Mostly Plants." He goes into detail about these but the Eat Food part is subheaded. Don't eat anything your grandmother wouldn't recognise as food; Avoid Food Products containing ingredients that are a)unfamiliar, b) unpronounceable, c) More than 5 in number or that include d) high-fructose corn Syrup; Avoid food products that make health claims; Shop the peripheries of the supermarket and stay out of the middle Get out of the supermarket whenever possible He does the same with the rest of the 7 words of his manifesto and I find it interesting food for thought and plan to enact at least part of it. Well worth a read.