One day, after a previous day's constant craving for sweets, I woke up and felt suicidal. I tried calling a shrink, but there was only an answering machine, so I figured I'd call back later.
After I ate breakfast I felt so much better, that I realized I wasn't crazy, it had to do with either being hungry, what I ate, or something biological. I went to the MD for a fasting GTT, and sure enough - hypoglycemia.
The low carb works great for me.. I feel very sensitive to carbs, and that is why I believe it is so difficult to lose weight, and why cravings come back so quickly if one "goes off" the plan.
I do 3 meals and 1 or 2 snacks a day. I sometimes get hungry at night, even if I eat dinner at 6 pm, so I might have some cheese or something around 8:30pm. I'm still "up in the air" on this pm snack, because a lot of folks say not to eat at night, yet on the Zone they say it is important to keep the blood sugar level. So--if I'm really hungry, I do eat a litttle. It seems to be OK for me.
Also, though, I do have to count the calories or I don't lose weight. I'm afraid to go "whole hog" (pun intended)

and not count them, like Atkins suggests.
Just last Sunday in the newspaper it said to eat every 3 hours (and nothing after 7pm) and that will help with weight loss. I guess everyone has an opinion!
Well, that's my story. Hope it helps!