I’m surprised some days, when I eat, then write it down and add it up. How, I think, did the number get so high? I didn’t eat that much food. But---the food was calorie dense. Other days, I think wow---is that all the calories I’ve taken in?…. I’ve had a ton of food. I’d be wise to repeat those days.
Even if I’m not holding myself to a calorie limit for the day because it’s a special day like my birthday, continuing to keep a running tally does have a restraining effect. And that alone is a very good reason for keeping a food journal. Too many of us, myself especially included, have food amnesia. Seeing the cold hard numbers reins us back to reality.