Which nutrients should food manufacturers measure during product development?

Food manufacturers should measure macronutrients (energy, fat, saturated fat, carbohydrates, sugars, protein, and salt) as a baseline during product development, alongside any micronutrients and minerals relevant to their product category. The exact nutrients required depend on the target market’s regulatory framework and the product’s intended nutritional claims. The sections below walk through each dimension of nutrient testing, from legal requirements to analytical instruments used in food quality control labs.

Which nutrients are legally required on a food label?

In the European Union, food labelling regulations require manufacturers to declare energy, fat, saturated fat, carbohydrates, sugars, protein, and salt on every pre-packaged product. These seven values form the mandatory nutritional declaration. Vitamins and minerals are only required on the label if a nutritional or health claim is made about them, or if they are added to the product.

For food manufacturers operating in the Benelux, EU Regulation 1169/2011 on food information to consumers is the primary reference. Beyond the mandatory seven, voluntary declarations of fibre, polyunsaturated or monounsaturated fatty acids, and specific vitamins or minerals are permitted, provided they meet minimum significance thresholds defined in the regulation. Manufacturers planning to export outside the Benelux should always verify the labelling requirements of the destination market, as rules differ between the EU, the UK, and other regions.

What are macronutrients and why do food manufacturers measure them first?

Macronutrients are the nutrients required in large amounts to provide energy and structural support: fat (including fatty acid profiles), carbohydrates (including sugars and fibre), and protein. Food manufacturers measure macronutrients first because they directly determine the product’s energy value, the headline figure on any nutritional label, and because they represent the largest proportion of most food matrices.

Measuring macronutrients early in product development allows formulators to verify that a recipe delivers the intended nutritional profile before scaling up production. If a reformulation reduces fat content to support a “reduced fat” claim, for example, the protein and carbohydrate values will shift accordingly, and all three must be re-confirmed analytically. Salt content, while not a macronutrient in the strict biochemical sense, is included in the mandatory declaration and is closely tied to sodium analysis in the lab.

Moisture content is another foundational measurement. It is not declared on the label directly, but it influences the accuracy of all other nutrient values because results are typically expressed on a wet-weight or dry-weight basis. Establishing moisture early prevents systematic errors from propagating through the rest of the nutritional analysis.

Which micronutrients and minerals are critical to measure in food products?

The micronutrients and minerals most critical to measure depend on the product category, but commonly prioritised nutrients include calcium, iron, magnesium, zinc, potassium, phosphorus, and vitamins such as D, B12, and folate. These are prioritised because they are nutritionally significant, frequently declared voluntarily, and sometimes subject to fortification requirements in specific product categories such as infant formula or breakfast cereals.

Mineral analysis in food is also important from a food safety perspective. Certain elements, including heavy metals such as lead, cadmium, arsenic, and mercury, are regulated contaminants in food. Their measurement is not a nutritional labelling requirement, but it is a compliance obligation under EU food safety law. For exact regulatory limits applicable to specific food categories, manufacturers should consult the relevant EU regulations and guidance documents.

Fortified products require particular attention. When a mineral or vitamin is added intentionally, its concentration must be verified analytically to confirm that the declared amount is present throughout the product’s shelf life, not just at the point of manufacture.

How does nutrient measurement differ across product categories?

Nutrient measurement methods and priorities vary significantly across product categories because the food matrix, the physical and chemical structure of the product, determines which analytical techniques are appropriate and which nutrients are most relevant to measure.

Dairy products: Fat, protein, and calcium are primary measurements. Moisture and salt are also critical for aged cheeses and processed dairy.
Meat and fish: Protein and fat content dominate, with fatty acid profiling important for fish products making omega-3 claims. Heavy metal monitoring (particularly mercury in fish) is a regulatory requirement.
Cereals and baked goods: Carbohydrates, fibre, and iron are key. Sodium from salt is often a reformulation target in this category.
Plant-based products: Protein quality and completeness, iron, zinc, calcium, and vitamin B12 are closely monitored, especially when plant-based alternatives are positioned against animal-derived products.
Infant formula and foods for special medical purposes: These categories face the most stringent analytical requirements, with tightly regulated ranges for a broad panel of vitamins, minerals, and macronutrients.
Beverages: Sugar content is the primary focus for regulatory and reformulation reasons, but mineral content and acidity also matter depending on the product type.

When in the product development process should nutrient testing happen?

Nutrient testing should happen at multiple stages of product development, not just at the end. Starting analytical testing early prevents costly reformulations and ensures that nutritional claims are grounded in verified data from the outset.

A practical sequence looks like this:

Concept and formulation stage: Use ingredient composition data to estimate the nutritional profile. This is a desk-based calculation, not a lab measurement, but it guides the recipe direction.
Prototype testing: Analyse the first physical prototypes in the lab to verify that the actual composition matches the calculated estimate. Discrepancies at this stage are common and easy to correct.
Process validation: After the manufacturing process is defined, re-test finished product samples to confirm that processing (heating, mixing, extrusion) has not significantly altered the nutritional values.
Shelf-life testing: For nutrients that degrade over time, particularly vitamins, test at intervals across the intended shelf life to confirm that declared values remain accurate at the point of consumption.
Ongoing production monitoring: Routine nutritional analysis of production batches is part of quality control in food manufacturing, ensuring consistency between batches and compliance with label declarations.

What analytical instruments are used to measure nutrients in food labs?

Food quality control labs use a range of analytical instruments to measure nutrients, with the choice of instrument determined by the nutrient type, the required sensitivity, and the throughput demands of the lab. No single instrument covers all nutritional parameters.

For elemental analysis (measuring minerals such as calcium, iron, zinc, and potassium, as well as heavy metal contaminants), inductively coupled plasma techniques (ICP-OES and ICP-MS) are widely adopted in food labs. These methods deliver high sensitivity across a broad range of elements simultaneously, making them efficient for comprehensive mineral panels. elemental analysis support is a core part of what food labs in the Benelux rely on for this type of work.

For moisture, ash, and proximate analysis (fat, protein, carbohydrates calculated by difference), gravimetric and combustion-based methods are standard. Nitrogen determination by combustion (the Dumas method) is widely used for protein analysis as an alternative to the classical Kjeldahl approach.

Titration-based methods are used in food labs for acidity, salt content, and certain vitamin determinations. Automated titration systems improve reproducibility and throughput compared to manual titration, which matters in high-volume food quality control environments.

For sugar profiling and vitamin analysis, chromatographic techniques such as HPLC are commonly applied, though these fall outside elemental analysis instrumentation and are typically part of a broader analytical platform in the lab.

How SciSPX supports nutritional analysis in food manufacturing

SciSPX works with food manufacturers, ingredient producers, and food quality control labs across the Benelux to help them build reliable analytical workflows for nutritional testing. The team combines instrument expertise with application-level knowledge specific to food matrices, which means advice goes beyond equipment selection.

Application support for elemental analysis of minerals and heavy metal contaminants in food
Guidance on automated titration for salt, acidity, and moisture-related measurements
IQ/OQ installation and validation services to ensure instruments meet GMP and GLP requirements
Training for lab teams on method development and instrument operation
Ongoing service and preventive maintenance to keep instruments performing consistently

If your food lab is setting up or expanding its nutritional analysis capabilities, get in touch with SciSPX to discuss which instruments and methods best fit your product categories and compliance requirements.

Frequently Asked Questions

How do I know if my nutritional label values are accurate enough to withstand a regulatory audit?

Accuracy depends on using validated analytical methods, calibrated instruments, and certified reference materials during testing. For regulatory audits in the EU, labs should ideally operate under ISO 17025 accreditation or be able to demonstrate method validation data. If you are using an external lab, ask specifically whether results are traceable to certified reference standards and whether the methods used are recognised under EU Regulation 1169/2011 or relevant Codex Alimentarius guidelines.

What is the difference between calculated nutritional values and analytically measured values, and which should I use on my label?

Calculated values are estimated from ingredient composition databases and are useful during early formulation, but they can deviate significantly from the actual composition of a finished product due to processing losses, ingredient variability, and matrix interactions. Analytically measured values, obtained by physically testing the finished product in a lab, are more reliable and are generally expected by regulators for label declarations. As a rule of thumb, use calculations to guide development and lab analysis to confirm and declare.

How often should I retest my product's nutritional profile after it has been launched?

You should retest whenever there is a meaningful change to your recipe, ingredient suppliers, or manufacturing process, as any of these can alter the nutritional composition. As a general practice, periodic retesting every one to two years is advisable even without formulation changes, since ingredient specifications from suppliers can drift over time. Products making specific nutritional or health claims should be tested more frequently to ensure the declared values remain accurate and defensible.

What are the most common mistakes food manufacturers make when setting up nutritional testing for the first time?

The most common mistakes are testing too late in the development process, relying solely on calculated values for final label declarations, and underestimating the impact of the food matrix on analytical results. Another frequent error is failing to account for nutrient degradation during shelf life, particularly for vitamins, which can result in declared values that are no longer accurate by the product’s best-before date. Building a staged testing plan that runs in parallel with product development, rather than as a final step, avoids most of these pitfalls.

Can I use a single external lab for all my nutritional testing, or do I need multiple specialist labs?

Many accredited food testing labs offer a broad nutritional panel covering macronutrients, minerals, vitamins, and contaminants, so a single lab relationship is often sufficient for routine testing. However, highly specialised analyses, such as full fatty acid profiling, certain vitamin forms, or trace contaminant work at very low detection limits, may require a lab with specific instrumentation or accreditation. It is worth asking any prospective lab for a full list of accredited methods and checking that they cover the specific nutrients and matrices relevant to your product category.

How does the EU's nutrition labelling regulation differ from UK requirements post-Brexit, and does it affect my testing approach?

The UK retained the core structure of EU Regulation 1169/2011 after Brexit but has since introduced its own labelling rules, including the requirement to express energy in kilocalories only (without kilojoules) on front-of-pack labels in Great Britain, and different rules around reference intakes. The mandatory nutrient list is broadly similar, but portion sizes, rounding rules, and voluntary declaration formats can differ. If you are selling into both markets, your testing approach does not change, but your label design and declared values may need to be adapted for each market separately.

What should I look for when evaluating whether to bring nutritional testing in-house versus outsourcing to an external lab?

The decision comes down to testing volume, the range of nutrients you need to measure, and your budget for capital equipment, maintenance, and trained personnel. Bringing testing in-house makes economic sense if you are running high volumes of routine analyses, need rapid turnaround for production decisions, or want tighter control over your quality data. Outsourcing is more practical for lower-volume testing, highly specialised analyses, or when you are still in early product development. Many manufacturers use a hybrid approach, running proximate and elemental analysis in-house while outsourcing vitamin and contaminant testing to specialist labs.

This content was generated with the help of AI and it may contain mistakes