I am not oly writing about the writing quality of this book, but also about the awe-inspiring intricacy and thoroughness of research. Few people would buy a lab and go on an exploration of such a huge field as Mr. Adams has attempted, and very few if any could bring it to production in the excellent state this book is in. If you want a reference that will not become obsolete with next week's internet amazing discovery, do not hesitate to buy a copy .... for the simple reason that individual products and supplements may go out of style ... or even run out of town on a rail ... but the basic scientific reserch goes on, and this book has it. You can use it superficially to look up an individaul item, or you can delve into the mass of information layered below it. I don't think you will be disappointed. I was not.