Just eat real food. I've been doing that for 37-months now, non-stop, and have lost 76 pounds, slowly, gently, without ever feeling hungry. Just 100% unprocessed veggies, fruit, beans, grains, egg-whites, chicken breast and wild-caught salmon. Period. The only "processed" foods I eat are select no-fat, no-sugar salad dressings (further-diluted with rice vinegar), no-fat cottage cheese, no-fat Greek yogurt and grated parmesan cheese. My coffee & tea get stevia. I have about 10# to go. Easy. Best way to stay on track, for me, has been to weigh and document all my intake. My caloric intake tends to be 1100-1400 calories, but honestly after a couple huge salads some days I'm still content at 9 PM and only up to like 800-calories. I have to eat a couple bananas or some chicken breast to make my 1100 minimum.