By definition, "dieting" refers to the practice of eating or
drinking in a regulated manner in order to achieve a specific
short-term objective of gaining and or losing size or weight.
"Diet" on the other hand refers to the habit of nutritional
consumption and focuses more on a long-term goal.
Studies show that the most common objective of dieting is for a
person to lose excess body fat. But, there are also kinds of diet
that are prescribed in order to achieve a particular medical
objective while some dieting are actually designed and prescribed
to increase body fat or add up to muscle weight gain.
Diet is actually categorized into two: the weight-loss diets, which
restrict the intake of specific foods or food group in order to
reduce body weight and the weight-gain diets, which are usually
self-imposed in order to achieve a higher weight class.