I didn't know what the Blue Ribbon Baby plan was until I googled it. I always called it the Brewer Diet.
Oops. Anyway, I learned about it in my Bradley class around 20 weeks with DD and basically followed the guidelines. I had low BP, very little swelling and a healthy newborn weighing 7# 12oz. I gained almost 40# during the pregnancy but was back in my favorite jeans at our Bradley reunion at 9 weeks PP.
I'm following it basically the same way this time from much earlier on and I hope to have the same results.
My one complaint (and maybe because I never read the whole book but just followed my Bradley teacher's version) is that it doesn't warn of the danger of using dairy as your main protein source. My DD and several other babies whose mothers relied heavily on milk, whey protein, and other dairy for protein were sensitive to dairy for the first year or so of life. I had to eliminate dairy from my diet when DD was new until she was about 12 months because she couldn't tolerate any of it. She's fine now at 2 yo.