Serving Size
Definition
The reference amount of food used to calculate nutrition information panel values per serve, which must be declared on the label and represent a reasonable single consumption occasion.
Key Takeaways
- •Serving size in the NIP must reflect a 'reasonable' quantity consumed on a single eating occasion — it must be realistic for the product
- •FSANZ Standard 1.2.8 does not specify a universal serving size — it is the manufacturer's responsibility to define an appropriate quantity
- •Serving size affects how the NIP values appear to consumers — unrealistically small serving sizes can mislead on nutrient content
- •The per-100g column in the NIP allows consumers to compare products regardless of different serving size declarations
- •If a nutrition content claim is made per serve (e.g. 'low fat per serve'), the serving size becomes a legal element of the claim
Regulatory Source
- Standard 1.2.8— Nutrition information requirements — NIP must declare nutrient values per serving; serving size is chosen by the manufacturer but must be a reasonable single-occasion amount
Last verified against current standards: April 2026
Regulatory authority: Food Standards Australia New Zealand
What is Serving Size?
Serving size is the reference amount of food that a manufacturer chooses as the basis for declaring nutrient values per serving in a Nutrition Information Panel (NIP). Under FSANZ Standard 1.2.8, a NIP must declare nutrient values both per 100g (or 100mL) AND per serving. The serving size must reflect a "reasonable single-occasion serving" of the food as consumed.
The serving size is critical to how consumers interpret the nutritional value of a product. A product with 100 calories per serving looks very different if the serving size is 30g versus 100g.
Serving Size Principles Under Standard 1.2.8
Standard 1.2.8 does not mandate a specific serving size — the manufacturer chooses the serving size based on what they consider a reasonable single-occasion serving. However, the serving size must be:
- Reasonable: Not unrealistically small (e.g. claiming a serving size of 5g for a pasta product) or unrealistically large
- Practical: A quantity that a consumer could reasonably consume in one eating occasion
- Consistent: The same across all your products in a category (e.g. all your biscuit products should use a similar serving size per biscuit)
- Documented: The serving size and basis for the choice should be recorded in your formulation documentation
Examples of Reasonable Serving Sizes
- Breakfast cereal: 30g (approximately one bowl)
- Bread: 30g (approximately one slice)
- Pasta (dried): 75g (approximately one bowl cooked)
- Cheese: 20g (a small wedge)
- Chocolate: 25g (a few squares)
- Oil: 15mL (approximately one tablespoon)
Serving Size in Practice for Australian Food Manufacturers
What triggers a serving size decision? When you formulate a new product, you decide on the serving size based on typical consumption. This decision affects how nutritionally attractive or unattractive the product appears (large serving sizes make the per-serving calorie content higher, which may deter consumers; small serving sizes make it appear healthier).
Common mistakes:
Choosing an unrealistically small serving size to make the product appear healthier. While technically legal, it is misleading and can result in consumer complaints or regulator scrutiny. If a product is typically consumed in larger quantities, the serving size should reflect that reality.
Changing serving size without reason. If you reformulate a product but do not materially change typical consumption, changing the serving size is misleading and suggests an attempt to manipulate the per-serving nutrient appearance.
Inconsistent serving sizes across a product range. If you sell both "regular" and "mini" biscuits, it is reasonable to have different serving sizes (e.g. 30g for regular, 10g for mini). But all regular biscuits should use the same serving size.
Worked example: A jam manufacturer produces jam in 500g jars. They choose a serving size of 15g (approximately one tablespoon), which is typical for jam consumption. The NIP then shows: per 100g, and per 15g serving. This allows consumers to see both the per-100g comparison basis and the realistic per-serving basis for their typical consumption.
How Batchbase Manages Serving Size
When you set up a product in Batchbase, you specify the serving size and basis (e.g. "15g — one tablespoon" for jam). The NIP is then generated with nutrient values for both 100g and the specified serving. If you change the recipe but not the typical consumption, the serving size remains the same — Batchbase applies the new nutritional values to the same serving size, so consumers see the genuine nutrient change, not an artificial serving size change.
Related Standards and References
- FSANZ Standard 1.2.8 — Nutrition information requirements (serving size guidance)
- FSANZ food standards code
Related Terms
Food Standards Code
The Australia New Zealand Food Standards Code — the collection of standards governing food composition, labelling, safety, and production maintained by FSANZ.
FSANZ
Food Standards Australia New Zealand — the regulatory body that develops and maintains the Australia New Zealand Food Standards Code governing food labelling, safety, and composition.
Nutrition Information Panel
A mandatory table on packaged food labels in Australia displaying the average quantity of energy, protein, fat, saturated fat, carbohydrate, sugars, and sodium per serve and per 100g or 100mL.