Law Of Diminishing Utility

There is a similar concept called the law of diminishing utility, which says that the value, or utility, of consuming an additional item is usually, after a certain point, less than the value of the previous one consumed. Consider the difference between the enjoyment you receive from eating one donut versus eating a second or third donut. By the time you get to a sixth donut, you may no longer get any enjoyment out of it, and you might even start getting sick.