For what it's worth:
Made some minor modifications to my plan.
I eat breakfast and lunch that stay in line with the Furhman/Penn plan.
Basically, oatmeal and raw fruit (blueberries) for breakfast. (coffee and tea as well. No sugar, no cream, sometimes artificial sweetener)
Lunch is a salad (today for example: baby spinach, carrot, red bell pepper, snap peas, and a 1/4 cup of raw cashews with dressed balsamic vinegar only). Snacks will be fruits or veg, and I drink a 100 calorie dose of whey protein after I run or other such exercise. (which I do 3-4 times a week) I find the whey protein kills my snack cravings post workout. Previously I would come home after a workout and destroy a plate of cheese and crackers or some such thing. I don't seem to have those cravings with the whey protein.
A "normal" dinner. (Last night my wife and I had grilled steaks with sautéed green beans. She's not on the diet.)
My weight loss has slowed, but it has not stopped. I am currently at 209 after weighing 219 on January 9th and 213 on the 18th. I use my weekends as "cheat" days, having something like bacon and eggs at breakfast instead of oatmeal but still try to have a giant filling salad at lunch. I find it's not hard to do and seems to prevent snacking. It will be fun to see where I am in a couple more weeks.
Honestly I wonder how much of this is just my change in drinking habits. I've gone from several alcoholic beverages a week, to a few a month and no more than 1 per day. Last week I had zero drinks, the week before that I had a scotch on one day and a glass of port on another. I'm betting more than anything else, that's what has had the most impact.
I DO feel more energetic after a couple weeks of greatly increasing my intake of vegetables and fruit. Not sure if that's real or my imagination.