That's great that yoru doctor recommended the Zone. I'm also Zone certified. The Zone fast program is the easiest way to stay in the Zone, no book necessary. a small instruction pamphlet comes with your first shipment, as well as some quick and easy recipe ideas (under 10 min to prepare). If you prefer to do the Classic Zone (not eating Zone Fast foods) follow this: http://www.zonediet.com/tools/zone-classic
At-a-Glance is as easy as it looks, and works well. I lost 100 pounds with it and have kept it off for over 16 years with the Zone. For best results overall, (health and weight loss) you'd also supplement with Zone polyphenols and Omega RX (starting dose of Omega RX is 8 capsules daily.