Explain the differences between serving sizes and portion sizes
This may help you....
A "serving" is an amount of a food, such as a cup or an ounce, used in providing dietary guidance (recommendations) or making comparisons among similar foods (such as on the food label). Servings and portionsare not always the same. The key to helping kids stay healthier is eating sensible portion sizes.
serving size is the recommended amount you should eat. portion size is the amount you actually eat