I started Weight Watchers 7 wks ago and have lost 14 lbs w/ 30 more to go. My family loves the food and I keep a few of their snacks on hand so they don't feel deprived. I haven't been hungry once and I have replaced some of my old fav's w/ healthy low fat/high fiber choices so I really don't feel like I am missing out. If I have a day where I just really want to nibble, and other family obligations keep me from taking a walk or some other activity than I chose to honor it w/ healthier food choices (whole graing chips and salsa/fruit/pretzels etc).
Bottom line: they helped me put the missing pieces together.
Note: Over the last year I had already been making a lot of healthy food changes (increase fruits and veggies) and added more exercise into my life and I was losing some inches but not any weight. I know those changes are helping me be more successful now.
Good luck w/ whatever healthy weight loss program you chose.