Launching a functional food in the EU involves more than developing a good recipe.
The product also needs to meet requirements for food safety, composition, labelling and claims. Testing can provide important evidence, but the right analytical programme depends on the ingredients, manufacturing process, intended use and claims.
That is why a functional food should not automatically receive a generic laboratory test package.
Instead, testing should follow the specific risks of the product.
What makes a functional food different?
“Functional food” is not a separate harmonised legal category in EU food law.
A product may be marketed as a food while containing ingredients associated with a nutritional or physiological benefit. The regulatory requirements then depend on what the product contains, how it is presented and what is claimed.
For example, a fortified drink, protein product, botanical food or fibre-rich snack can have very different testing requirements.
The first step is therefore to define the product correctly.
Start with the formulation
Before deciding which laboratory tests to order, review the complete formula.
Consider:
- vitamins and minerals
- botanical ingredients
- plant extracts
- proteins
- amino acids
- fibres
- probiotics
- enzymes
- additives
- sweeteners
- flavours
- processing aids
Each ingredient can introduce different analytical or regulatory risks.
A botanical extract, for example, may require a different assessment from an isolated vitamin.
The testing plan should therefore start with the actual formulation, not a standard checklist.
1. Test the nutritional composition
If the product makes nutritional claims or provides declared nutrient values, the composition needs to be reliable.
Depending on the product, relevant parameters may include:
- protein
- carbohydrate
- fat
- fibre
- sugars
- salt
- vitamins
- minerals
- energy value
This information can support both product specifications and nutrition labelling.
For example, an EU nutrition claim such as “high protein” is only permitted when the product meets the conditions defined by Regulation (EC) No 1924/2006. The European Commission specifies that a “high protein” claim requires at least 20% of the energy value to come from protein. Food Safety
So the analytical result can directly affect what you are legally allowed to communicate.
2. Verify the active or functional ingredients
Functional foods often contain an ingredient that forms the basis of the product concept.
That could be:
- a botanical extract
- a specific fibre
- a vitamin
- a mineral
- a protein
- an amino acid
- a probiotic culture
The relevant question is not simply whether the ingredient is present.
You may also need to know:
How much is present?
Is the material correctly identified?
Does the concentration remain within specification?
For standardised extracts, marker compounds can be particularly useful for verifying consistency between batches.
3. Check for contaminants
Food contaminants can enter products through raw materials, agricultural practices, environmental exposure, processing or storage.
EU legislation establishes maximum levels for several contaminant groups, including certain mycotoxins, plant toxins, metals and persistent organic pollutants. Food Safety
Depending on the formulation, testing may therefore consider:
- lead
- cadmium
- mercury
- inorganic arsenic
- mycotoxins
- plant toxins
- PFAS
- dioxins and PCBs
- process contaminants
Not every functional food needs every test.
The relevant panel should reflect the ingredients and their potential exposure pathways.
4. Heavy metals: look at the ingredients first
Heavy-metal testing is particularly relevant for some botanical, mineral and agricultural raw materials.
However, a broad “heavy metals” test without considering the product can be inefficient.
The risk assessment should consider:
- ingredient origin
- agricultural conditions
- manufacturing process
- known contamination risks
- applicable maximum levels
The EU contaminant framework currently includes maximum levels for metals such as lead, cadmium, mercury and inorganic tin in specified foods. Food Safety
Therefore, the analytical method and test scope should be connected to the relevant regulatory requirement.
5. Consider pesticides for plant-based ingredients
Plant-based functional foods can also require pesticide-residue assessment.
This is especially relevant when products contain:
- herbs
- fruits
- vegetables
- botanical extracts
- agricultural raw materials
The need and scope depend on the material and supply chain.
A highly processed ingredient from a well-controlled supplier may have a different risk profile from a minimally processed agricultural ingredient.
Testing should reflect that difference.
6. Mycotoxins can matter for certain ingredients
Mycotoxins are naturally occurring toxins produced by certain fungi.
They can become relevant in ingredients such as grains, nuts and other agricultural materials.
The EU has established maximum levels for several mycotoxins in specified foods, including aflatoxins, ochratoxin A, deoxynivalenol, zearalenone and fumonisins. Food Safety
A risk-based testing plan should therefore consider:
- ingredient type
- geographical origin
- storage conditions
- processing
- supplier history
That approach is more useful than automatically screening every product for every mycotoxin.
7. Microbiological testing
A functional food can also require microbiological testing.
The relevant parameters depend on the product’s characteristics.
Consider:
- moisture
- water activity
- pH
- processing
- packaging
- intended storage
- ingredients
Possible analyses can include:
- total aerobic microbial count
- yeasts and moulds
- Enterobacteriaceae
- Salmonella
- other relevant pathogens
A dry protein powder and a refrigerated functional beverage clearly do not have the same microbiological risk.
Therefore, the testing programme should reflect the product’s actual conditions.
8. Test for allergens where relevant
Allergen management starts with the formulation and manufacturing process.
EU food labelling rules require the presence of the 14 specified allergens to be clearly indicated when they are used as ingredients. Food Safety
Relevant testing may become important when:
- an allergen is intentionally used
- cross-contact is possible
- manufacturing equipment is shared
- supplier controls are uncertain
Analytical testing does not replace good manufacturing practices.
Instead, it can provide additional evidence where the risk assessment justifies it.
9. Check the claims before testing
This step is often overlooked.
A company may develop a product first and then ask:
“What claims can we put on the label?”
A better approach is to consider claims during product development.
EU Regulation (EC) No 1924/2006 governs nutrition and health claims made for foods in the EU. Claims must meet the applicable conditions and should not mislead consumers. Food Safety
The European Commission also maintains an EU Register containing permitted nutrition claims and authorised health claims together with their conditions of use. Food Safety
This means the claim strategy can influence the testing strategy.
10. Test what supports the intended claim
Suppose a product is marketed around a defined nutrient.
The analytical data should support the actual amount present in the finished product.
For a nutrition claim, that may involve measuring:
- protein
- fibre
- vitamins
- minerals
- fat
- sugars
- energy
For a product based on a specific functional ingredient, other analytical markers may be more appropriate.
The important point is that the claim and the analytical evidence need to match.
A laboratory result does not automatically authorise a claim
This distinction is important.
Suppose a laboratory confirms that a product contains a particular botanical compound.
That result does not automatically mean the company can make a health claim about that compound.
The analytical result tells you what is in the product.
The regulatory framework determines whether the intended claim can be used.
The European Commission explains that health claims require authorisation and must be supported by scientific evidence. Food Safety
Therefore:
composition testing ≠ claim approval
Both need to be considered.
11. Consider novel ingredients
Some functional foods contain innovative ingredients that may fall under the EU Novel Food Regulation.
This question should be addressed before extensive product development.
If an ingredient requires novel food authorisation, analytical testing alone will not make the product marketable.
The regulatory status of the ingredient needs to be established first.
That can save considerable time because there is little value in optimising a formulation around an ingredient that cannot be legally marketed for the intended use.
12. Stability testing
Once the formula is defined, stability becomes another important consideration.
A functional food may need to remain within specification throughout its intended shelf life.
Depending on the product, stability testing can monitor:
- active ingredient content
- vitamins
- oxidation
- moisture
- microbiological quality
- colour
- flavour
- texture
- degradation products
Packaging can also influence stability.
A powder that is highly sensitive to moisture, for example, may require very different packaging from a dry product with low moisture sensitivity.
13. Packaging and food-contact materials
The packaging should not be treated as completely separate from product development.
Food-contact materials must not transfer their constituents into food at levels that could endanger health or cause unacceptable changes to the food. Food Safety
Depending on the packaging system, relevant assessments can include migration testing.
Potential analytical targets may include:
- plasticisers
- bisphenols
- metals
- mineral oil hydrocarbons
- other relevant migrants
The exact testing depends on the material and intended conditions of use.
14. Check the finished product, not only the raw materials
Supplier documentation can provide valuable evidence.
However, raw-material COAs do not automatically prove that the finished functional food meets its specifications.
Manufacturing can introduce changes.
For example:
- blending can affect homogeneity
- processing can affect active compounds
- heat can cause degradation
- storage can change moisture
- packaging can affect stability
Finished-product testing should therefore be considered alongside raw-material controls.
Raw material testing vs. finished-product testing
The two serve different purposes.
Raw material testing
Answers questions such as:
Is this the correct ingredient?
Does it meet its specification?
Are relevant contaminants controlled?
Finished-product testing
Answers questions such as:
Does the final product meet its specification?
Does it contain the expected amount of the functional ingredient?
Is it microbiologically acceptable?
Does it remain stable?
A strong quality strategy uses both where appropriate.
How much testing does a functional food need?
There is no universal testing package.
A useful testing plan depends on:
- formulation
- ingredients
- processing
- target consumer
- serving size
- packaging
- claims
- intended shelf life
- supplier controls
- regulatory requirements
This is why two functional foods can require completely different analytical programmes.
A botanical powder and a fortified beverage may both be marketed as functional foods, yet their risks are not comparable.
A practical testing framework
A functional-food testing plan can be structured into five areas:
1. Composition
What is actually in the product?
2. Safety
Are relevant microbiological and chemical hazards controlled?
3. Stability
Does the product remain within specification over its intended shelf life?
4. Claims
Does the analytical evidence support the intended nutrition or product information?
5. Packaging
Could the packaging affect the product or introduce relevant substances?
Together, these areas create a much more complete picture than a single laboratory report.
Example: a botanical functional drink
Imagine a company developing a drink containing:
- a botanical extract
- vitamin C
- added fibre
- natural flavour
- sweetener
A reasonable risk assessment could lead to testing such as:
Botanical extract
→ identity and marker compounds
Vitamin C
→ quantitative assay
Fibre
→ fibre content
Microbiology
→ relevant microbial parameters
Botanical raw material
→ appropriate contaminant screening
Finished product
→ composition and specification testing
Stability
→ active content, microbiology and relevant physical properties
Packaging
→ appropriate food-contact assessment
The exact programme would depend on the formulation and manufacturing process.
That is the key point.
Testing should start before launch
Waiting until the finished product is ready can create unnecessary delays.
Imagine discovering late in development that:
- the active concentration is unstable
- a contaminant exceeds a relevant limit
- a claim cannot be used
- the packaging requires further assessment
- the ingredient has a regulatory issue
Each problem can force changes to the formulation or launch plan.
Testing should therefore be integrated into product development.
Build the testing plan around decisions
A useful question for every planned test is:
What decision will this result support?
For example:
Nutrient analysis
→ Can we substantiate the declared nutritional value?
Contaminant analysis
→ Does the product meet the relevant safety limits?
Microbiology
→ Is the product microbiologically suitable?
Stability testing
→ Can the proposed shelf life be supported?
Active-ingredient analysis
→ Does the finished product contain the expected amount?
Migration testing
→ Is the packaging suitable for the intended use?
This makes the testing programme more focused.
Common testing mistakes
Testing everything
A huge analytical panel does not automatically create a safer product.
The relevant risks should determine the tests.
Testing only the active ingredient
A functional food can have risks unrelated to its main active component.
Relying only on supplier COAs
Supplier data are useful, but finished-product verification may still be needed.
Testing after the formula is frozen
Late findings are more expensive to solve.
Ignoring claims
The formulation and analytical strategy should support the intended communication.
Forgetting packaging
Packaging can affect both safety and stability.
What should be ready before launch?
Before placing a functional food on the EU market, companies should have a clear evidence package covering the relevant aspects of the product.
Depending on the product, this can include:
- final formulation
- raw-material specifications
- analytical results
- microbiological results
- contaminant testing
- stability data
- packaging assessment
- nutrition information
- claim assessment
- supplier documentation
- traceability records
The exact documentation depends on the product and its regulatory context.
The Makrolife approach
Makrolife supports food and supplement companies with analytical testing and regulatory services designed around the specific product and its risks.
That can include testing for:
- composition
- contaminants
- microbiology
- active ingredients
- stability
- food-contact materials
The objective is not to create the longest possible test report.
It is to generate relevant evidence that supports product quality, safety and regulatory decisions.
The bottom line
Launching a functional food in the EU requires more than proving that the main ingredient is present.
A strong testing strategy considers the whole product.
That means looking at:
composition
contaminants
microbiology
stability
claims
packaging
and regulatory requirements.
The right testing programme depends on the product.
So instead of asking:
“What tests should every functional food have?”
ask:
“What could affect the safety, quality or compliance of this specific product?”
That question leads to a much more useful testing strategy.
