Westerner, anyone who loses weight is going to gain it back if they revert to their old eating habits. That's the problem with most diets out there today. I know people who've followed Atkins, lost weight, then stopped the plan. Either they didn't think about it as a way of life, or at some point in time completely forgot what they learned on Atkins.
One thing I find very wonderful about following Atkins is that unlike low-fat diets like WW and Richard Simmons, I eat enough that my appetite is completely satiated. Granted, there are non-LC foods that I love, but with a satisfied appetite, whether or not I eat those foods really isn't a huge issue. With low-fat diets, where I was starving all the time, it did become a huge issue. I got so tired of being hungry I couldn't stick with any of them.
You mentioned low-glycemic diets for blood sugar control, and as you can see in Atkins for Life that's very much the maintenance phase of the Atkins plan. Unfortunately, though, losing weight on maintenance isn't easy to do--I know, I followed a low-glycemic way of eating for around two years before starting Atkins because it kept my blood sugar in check. I never lost a pound in the process. The problem was, even though I was eating low-glycemic foods, I was still consuming way too many carbohydrates.
I look forward to reaching my goal and going on maintenance. I've read Atkins for Life, and honestly it's going to be an easy path to follow. I can deal without pasta (haven't had one bite of pasta in 7 months now, which in retrospect is a little hard to believe!), can live mostly without potatoes (a little potato salad a couple of times a year isn't against Atkins for Life), and rice is just completely over-rated!
I know some refer to Atkins as restrictive. How on earth can eating the foods with the most flavor be restrictive? Carbohydrate-laden foods don't have flavor (with the exception of home-made white bread and fresh corn) until something is put on them! Look at potatoes--what do you add for flavor? Ever eat potatoes plain with nothing on them? Yuck! And rice? Ever eat it just out of the pan with nothing? Even worse than potatoes! And pasta's another one--it has no flavor without sauce.
I really think that when people call Atkins restrictive they simply have no imagination, and really don't appreciate the finer foods in life.