Exactly! These people are either mentally ill or mentally retarded. They like to use the term "intuitive eating" but that's the issue: Some foods are extremely high in calories and our intuition may fail us, especially with prepared food with added sugar or fats.  So it's best to track calories carefully during the day, and never eat foods that you can't even estimate what the calories may be (like home-baked cakes that show up in the break room!) It's as simple as that!