The words 'portion' and 'serving' mean different things to different people. This often results in a great deal of confusion, particularly for you, when you are deciding how much you can eat of a particular food.
Current definitions of 'portions' and 'servings'
Dictionary definition
Portion: part, share or helping
Serving: single portion/amount of food taken at a meal
Food Industry definition
Portion: "A portion is either a division of a package as a whole, e.g. half a quiche, a sausage, a sixth of a cake, two biscuit, or a complete package"
Serving: "A quantified serving is a measured amount, which may or may not be a division of the whole package, e.g. x oz of cheese, a …. Spoon (yml) of mayonnaise"
Health Professionals
A serving is an amount of food used together with the number of those servings that should provide the daily total of food from each of the food groups.
Key points to remember about portion sizes on food labels