I think if you are having a lot of actual physical hunger, you need to look at what you are eating. If you are eating a lot of breads, diet products such as light ice cream, etc. they don't stay with you as long as healthy lean protein such as fish or chicken breast, and low calorie but bulky carbohydrates such as fruit. A low fat chewy granola bar can be about 120 calories, but you could eat 2 cups (a much larger portion) of watermelon chunks or sliced strawberries for about 100 calories. You could have a serving of oatmeal for about the same calories of the granola bar as well, but it is much more filling.
If you are having physical hunger, switch some of the more calorie dense foods in your diet to more foods like these that are very filling with larger portions for the same amount of calories. (No pills required!
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For emotional eating/head hunger I recommend DOING something. Stay busy. In the evening when I sit for a while in my recliner I keep a copy of Shape or Fitness magazine, or a good book near it. I read instead of munch. Knitting, crocheting, cross stitch and other handiwork is great as well because you can't eat if your hands are busy and you are concentrating. I find my emotional eating cues are boredom and stress. I keep busy to fight boredom eating, and when I am stressed I come here to 3FC to chat, or take a little walk, or do a short 10-20 minute yoga or stretching video. It really helps.