To misquote James Carville, "It's the calories, stupid." I have successfully broken through my stall, by limiting my calories. I bought into the low carb hype about a "metabolic advantage" and the idea that "calories don't count." About four weeks ago when I started slowing down in my weight loss I decided to restrict calories, since some voices I respect talked about the necessity of counting calories.
Thinking back on it, it is remarkable that I lost almost 50 pounds without counting anything except grams of carbs. I guess that shows how overweight I was. The greater satiety from eating fat and protein filled me up and I spontaneously consumed fewer calories, which directly led to the weight loss. However, as I am losing weight, my metabolism is adjusting as well, and the weight loss started slowing, then stalled. But since I started counting calories (and exercising more), I have started losing weight again. Even though I have been restricting calories (using the free livestrong.com program), I am still not hungry most of the time, so this is clearly the way to go. I guess it helps that, with exercise, I can consume 2,700 calories per day and still lose weight. Only about thirty pounds to go until I hit my goal.
"Low carb" is still the way to go, as it is a much more pleasant weight loss experience. However, I think I am redefining in my own mind what "low carb" actually means. But that is the subject for another day.