Per Thud's comment, DDF compared to NO is not as much work. As you said, Bawdy, the 3-day baseline data collection is a lot, but after that, it's not as high maintenance while you're training yourself and adjusting your personal hunger and personal fat thresholds by eating to the meter. It's also something that you can revisit anytime to check in on your status of BG and meal timing. As mentioned, I like the combination of Naiman and Kendall and have learned much from both.