Nature-Identical Caramel Flavouring Substances

About

What it is and where it shows up.

Nature-identical caramel flavouring substances are chemically synthesised compounds that are structurally identical to the caramel-like aroma molecules found naturally in thermally processed foods (e.g., diacetyl, furaneol, maltol). They are used in food and beverages to impart or reinforce a caramel, toffee, or burnt-sugar flavour profile without the need for actual caramelisation.

Safety summary

The regulatory and scientific consensus.

At typical food-use levels, nature-identical flavouring substances (including caramel-type) are broadly considered safe for the general adult population; EFSA has evaluated approximately 2,000 flavouring substances via Flavouring Group Evaluations and found no significant safety concern at normal dietary exposure. No specific ADI has been established for this class as a whole; individual constituent substances (e.g., diacetyl, maltol) carry their own exposure-based safety thresholds. Occupational inhalation of concentrated diacetyl (a common caramel-note compound) has been linked to bronchiolitis obliterans in workers, but this risk does not apply to consumers at food-use concentrations.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Approved	Approved under Regulation (EC) No 1334/2008, which governs all food flavourings in the EU. The category 'nature-identical' was abolished as a distinct label class; such substances are now evaluated and authorised under the common Union list of flavouring substances (Annex I, introduced 1 October 2012 via Commission Implementing Regulation (EU) No 872/2012). Individual caramel-type flavouring substances (e.g., maltol, ethyl maltol, diacetyl, furaneol) appear on the Union list and have been assessed in EFSA Flavouring Group Evaluations (FGEs). The term 'natural' may only be used for substances derived directly from animal or vegetable material.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Recognised as a distinct regulatory category under Regulation 3.3.1 of FSS (Food Product Standards and Food Additives) Regulations, 2011. Defined as substances chemically isolated from aromatic raw materials or obtained synthetically that are chemically identical to substances present in natural products. Labelling must declare the class name 'Nature-Identical Flavouring Substances'; only the class name (not individual substance names) is required on consumer labels.source
FDA (Food and Drug Administration) (United States)	Approved	The US does not use the term 'nature-identical'; caramel-type flavouring substances produced by synthesis are regulated under 21 CFR 172.515 (synthetic flavouring substances and adjuvants) or assessed as GRAS by the FEMA Expert Panel. Individual substances such as diacetyl, maltol, ethyl maltol, and furaneol are listed as FEMA GRAS. Caramel itself is listed as GRAS (21 CFR 182/184). Flavours make up the largest number of GRAS ingredients in food per FDA.source

Who should approach with care

Whose guidance would steer them away.

Infants — Infants have immature metabolic pathways and regulatory bodies such as EFSA note that dietary exposure assessments specifically consider infants and young children as sensitive subpopulations requiring separate exposure modelling for flavouring substances.

Pregnancy — EFSA's scientific guidance on flavourings explicitly identifies pregnant women as a specific target population requiring separate exposure assessment; individual constituent substances (e.g., diacetyl at high levels) have not been fully characterised for developmental safety.

Ibs — Certain caramel-type flavouring compounds (e.g., diacetyl, maltol) in processed foods may contribute to overall chemical load that can exacerbate gut sensitivity in individuals with IBS, though direct causal evidence at food-use concentrations is limited.

Other — Workers with occupational inhalation exposure to concentrated diacetyl (a key caramel flavour compound) have developed serious lung disease (bronchiolitis obliterans); this risk is specific to inhalation of concentrated forms in manufacturing settings and does not apply to consumption in food at regulated use levels.

Research citations

The sources behind this verdict.

1EFSA. Scientific Guidance on the data required for the risk assessment of flavourings to be used in or on foods, 2022. efsa.europa.eu
2PubMed. The 'Natural' vs. 'Natural Flavors' Conflict in Food Labeling: A Regulatory Viewpoint, 2017. pubmed.ncbi.nlm.nih.gov
3EFSA. Flavourings – EFSA Topic Page and Union List of Flavouring Substances (Regulation EC No 1334/2008), 2012. efsa.europa.eu
4FSSAI. Food Safety and Standards Regulations, 2009 – Definitions (Regulation 1.2.1(29)), 2009. fssai.gov.in
5other. Codex Alimentarius CX/FAC 05/37/15 – Definitions and categorisation of flavouring substances including nature-identical, 2004. fao.org

Independently researched5 citations