Is it bad to eat at nigiht?

Eating at night is no worse than eating at any other time of day. What matters is not the time of day in which meals occur, but the amount of calories being taken in versus the number of calories being burned.

The "calorie-in calorie-out" theory states that the time of day is irrelevant; how much and what type of food being eaten is far more important. When daily calories gained exceed calories burned, body weight begins to increase. The reason that night eating is often seen as negative is because it is typically done in addition to the normal caloric intake of a day.