I'm with Lucky here ... as usual.
I agree that this is a subtle area. I DO agree with suechef that being hungry isn't the end of the world, but I also know that if I let myself get too hungry, or go hungry for too long, I'm setting myself up to overeat. My wiring as a compulsive overeater is part of that, so those who aren't wired that way may not have the same danger zone. Also, if I am tummy-growling hungry a LOT during the day, or seriously hungry for several days, that tells me -- based on my experience about myself -- that something's not working. Either my eating schedule is off (usually a result of being overly busy), or I'm not taking in enough calories to support my activity level.
So, for me, there are two central keys that help everyone be on the same page, as Lucky mentioned:
- Don't be afraid of a little hunger. When I was overweight I thought being even a little hungry was just the worst thing in the world, and it's the primary thing I've seen that makes people dread controlling their intake. It won't kill you, I promise.
- Be open to re-learning your body's signals. Most overweight people have lost touch with what it means to be merely satisfied rather than "full", and often they've lost touch with the subtle signals that the body needs food. I listen to my body, and I DO eat something if I can when I feel that drop in energy (that I had been ignorant of in my overweight days). But, I've also learned that I feel satisfied sooner than I used to realize, I just have to pay close enough attention and ignore the deafening voice that yells "KEEP EATING." As mentioned, I know the consequences of getting over-hungry, and what problems it may signal. I've LEARNED the difference between a little discomfort and "hmmm, I REALLY need to get something to eat." So, I have learned to judge each situation, paying attention to distinctions that had been obliterated in my overeating past.
One other observation -- like most people, when I started my plan I was not only dealing with head hunger but real physical hunger. I was going from eating probably 4000 calories a day on AVERAGE to 2000. Like most people, though, I stuck with it and soon that extreme hunger went away. As I lost weight, my program stepped me down to lower calorie levels over time. I'm now at 1200, but the reality is I probably eat 1300 or 1400 on average. I am just as satisfied at this level as I was at 2000 after my transition period. But, every time I dropped down to the next lower level, I went through the hunger all over again. It was just part of the deal, and I just had to learn to live with it. If I ramped up the exercise in a serious way, I would get hungrier for a while. I learned to determine whether it was a temporary adjustment or a signal that I needed to add a little more fuel. On top of that, I could be cruising along and suddenly one week go through a period of increased hunger. If I hadn't increased my activity, if nothing had changed in the way of illness or medication or anything else, I just had to chalk it up to my body recalibrating and live through it. It wasn't easy sometimes, especially when I was lying in bed trying to go to sleep and my stomach was rumbling, but sometimes you just have to hang on for a while and see how it all shakes out.
So, there are lots of variables, and you have to learn what's right for you. But, you have to be observant and you have to be willing to live through a little hunger in order to find out what's really going on and what's going to work best for you in the long run.
P.S. One thing that has been instrumental in me re-learning my body's signals and in learning to cope with minor hunger is having an eating schedule as suggested by my program. At first it was hard, and it sort of goes counter to the "eat only when you're hungry" rule that we think of as natural. Still, by sticking to a consistent schedule of eating something every 3 to 4 hours, I was able to tune into what my body was saying. I learned that "hungry" wasn't ravenous -- my body really did feel better after that little snack, even though I hadn't thought I was hungry. And by eating only a set amount of food at a set time, 15 minutes after a meal I learned that the voice that was telling me I needed more food had been lying. It really DOES take 15 or 20 minutes for your brain to get the message that the stomach has had enough food. I had always kept eating until my brain got the message rather than stopping when I'd had a reasonable portion. So, again, "hungry" is a slippery concept, and most overweight people need to learn how to redefine it in both directions.