Nuclear techniques to detect food fraud
Food fraud involves deliberate actions to deceive consumers about the identity, quality or composition of food products to gain economic benefits. These practices include frauds such as diluting products, substituting ingredients, mislabeling and counterfeiting brands. In addition to financial losses, these actions can pose health risks to consumers. According to the International Atomic Energy Agency (IAEA), this is especially concerning when undeclared or potentially toxic substances are introduced into food.
A threat to health and the global economy
Food fraud is a growing threat that affects not only public health but also the global economy. From ingredient dilution to deceptive labelling, these fraudulent practices result in estimated losses of $40 billion annually for the international food industry, according to IAEA data. Nuclear science is a key tool in detecting and preventing such frauds.
Nuclear science is a key tool in the detection and prevention of food fraud, which impacts both public health and the global economy
Nuclear techniques to support food authenticity
Nuclear technology offers advanced techniques to verify food authenticity and detect fraud. One of the most prominent methods is isotope ratio mass spectrometry, which analyzes the proportion of stable isotopes in food to determine its geographical origin and authenticity. For example, this technique can detect whether honey has been adulterated with cheap sugar syrups or if a wine has been diluted with water.
Another key technique is nuclear magnetic resonance (NMR), which provides a “digital fingerprint” of food products, making it easier to detect adulteration and verify their composition. These nuclear tools give scientists and authorities unprecedented capabilities to guarantee the integrity of food products.
Isotope ratio mass spectrometry analyzes the geographical origin and authenticity of food products, while nuclear magnetic resonance detects adulteration
The IAEA, in collaboration with the Food and Agriculture Organization of the United Nations (FAO), supports countries in implementing nuclear techniques to combat food fraud. Through research programs and technical cooperation, these technologies are being promoted and adopted in laboratories worldwide.
In Spain, the Spanish Agency for Food Safety and Nutrition (AESAN) under the Ministry of Consumer Affairs plays a crucial role in monitoring and controlling food safety. AESAN coordinates Red de Alerta Alimentaria (Food Alert Network), which monitors and responds to food safety incidents, including fraud cases. It also promotes research and the adoption of advanced technologies to enhance fraud detection throughout the food supply chain.
Innovaciones tecnológicas
Nuclear technology not only helps to detect food fraud but also complements emerging innovations such as the SmartControl Project by the University of Vigo, which combines hyperspectral imaging and machine learning to verify the authenticity of seeds, flours, and other powdered products. This technology enables real-time analysis of the chemical composition of food, helping identify adulteration without destructive testing.
In nuclear environments, hyperspectral imaging can be used to detect contaminants, inspect surfaces, or analyze the composition of waste—all without physical contact. Similarly, machine learning systems help optimize predictive maintenance of critical components, detect anomalies in nuclear plants, and improve safety controls.
Additionally, portable devices based on nuclear technology are being developed to allow inspectors to perform rapid and accurate on-site analyses at production or retail locations. These tools increase efficiency in fraud detection and reduce response times to potential food safety threats.
Portable tools
The IAEA and FAO have launched a joint project to equip countries with affordable portable tools to quickly detect food fraud and contamination. This initiative brings together scientsts from 13 countries to explore new opportunitites enabled by advances in deployable analytical equipment for field use:
- Ion mobility spectometry adapted for food analysis
One of the technologies being considered is ion mobility spectrometry, a nuclear-based technique traditionally used by border police to detect drugs and explosives. This methoud could be adapted to perform on-site authenticity testing of food products.
- Portable devices to detect adulteration in powdered milk and vegetable oils
This project initially focuses on developing rapid testing methods for powdered milk and vegetable oils, two products that are especially vulnerable to fraud. The goal is to make affordable devices and methods available for food authorities to use directly in street markets and retail outlets, particularly in developing countries.
- Stable isotope analysis to verify food authenticity
Stable isotope analysis helps determine the origin and authenticity of various food products, helping to identify and prosecute food adulteration. This technique uses specialized equipment to detect minute variations in the ratio of light and heavy forms of chemical elements, offering a powerful tool in the fight against food fraud.
IAEA and FAO have launched a project to help countries detect food fraud and contaminantion using low-cost portable tools
Food fraud represents a significant challenge to the safety and trust in global food systems. The application of nuclear techniques and advanced technologies offers effective solutions to detect and prevent these fraudulent practices. Collaboration between international organizations, national authorities such as AESAN, and the scientific community is essential to strengthen the integrity of the food supply chain and protect consumer health.
With the continued innovation and adoption of these technologies, a substantial improvement is expected in the ability to ensure the authenticity and safety of the food that reaches our tables.
Sources: IAEA, AESAN
