I've been doing Atkins about 5 months now and I still have trouble some days getting my 20 carbs in. I eat and I eat well, cheese and mushroom omlette and sausages for breakfast, eating a big salad and chicken at lunch and protien of some sort and a cup of veggies at dinner. So I eat my veggies but I really don't snack much so unless I have a snack of mac nuts or some cheese, I usually don't get all 20 carbs in and I'm not hungry so I'm not going to eat just to eat. (that is one habit I'm trying to break!) I think that your body tells you how much you can handle!