How is the serving size of a food determined?
Asked by on Jan 05, 2010
The "serving size" is a reference amount; the "portion size" is the amount you actually eat. The Food and Drug Administration (FDA) regulates how manufacturers determine serving size. To determine the reference amounts, the FDA considers lots of information, such as typical portion sizes from food consumption surveys, serving sizes used in dietary guidance recommendations, the major intended use for the food, serving size recommendations from other countries, and serving sizes in relation to nutrient content and convenience of measuring. The FDA publishes a list of reference amounts for specific foods.