A serving size is a reference amount of food as defined by Health Canada. The Food Guide lists amounts of foods that are equal to one serving.
Food manufacturers also decide what makes up one serving for their products, and it’s not always the same as the Food Guide. You will see this amount listed on the Nutrition Facts Table on the package label.
A portion size is the amount of food that you actually put on your plate, that you plan to eat in one sitting. Depending on the food, your portion size may be one or more servings according to the Food Guide. For instance, if you eat a whole apple as one portion, that equals one serving of vegetables and fruit. However, if you eat a sandwich with two pieces of bread (one portion), you’re eating two servings of grain products since each slice of bread is one serving according to the Food Guide.
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