Borrowed The Primal Blueprint from library and was hooked, it felt so natural. Own copy now on order. Over the past couple of decades have worked 'up' from conventional western diet through deleting carbs, then grains, then dairy, to all fruit, then vegetarian, then raw, and finally reached my Primal origins three weeks ago via THAT book. Already the compliments are coming in -- even though I'm 78 years old (and have a number of health problems). From being on 9 medications, am already down to 6 and looking forward to deleting a couple more soon -- under medical supervision, of course. Now, THAT's health improvement for you! Previous experience with raw and grain free diets is making this transition so easy 😄! But the ratio of omega 3 to omega 6 has made a whole lot of difference this time round. Thanks so much, Mark!