Nutritional Profiling and the Problem of Pesticides

Food allergy is a growing concern for many individuals, with allergic reactions to certain foods affecting up to 10% of infants, 4-8% of children and 2% of adults in Australia. To ensure the safety of the food supply, it is important to test for potential allergens and contaminants such as pesticide residues.

Pesticides are chemicals used to control pests in agricultural crops. While they can be effective in protecting crops from insects, weeds, and fungi, they can also pose a potential health risk to humans when they are present in the food we eat. Pesticide residue testing is therefore a crucial step in the production of safe and healthy food.


There are several methods used to test for pesticide residues in food, including gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). These techniques involve separating the different components of a sample, such as individual pesticides, and then detecting and quantifying them using specialized instruments.

In addition to these laboratory-based methods, there are also immunoassays that can be used for the rapid screening of food samples for the presence of pesticide residues. These tests use antibodies that are specific to a particular pesticide and can provide results within minutes.


Once a food sample has been tested for pesticide residues, the results must be evaluated to determine if the levels are within acceptable limits. These limits are set by regulatory agencies such as the FSANZ (Food Standards Australia New Zealand) and are based on factors such as the type of pesticide, the type of food, and the potential health risks to consumers.

If a food sample is found to contain levels of pesticide residues that exceed the acceptable limits, it may be subject to recall or other regulatory action. This can help protect consumers from potential health risks and ensure the safety of the food supply.


In addition to testing for pesticide residues, food manufacturers and processors also need to be aware of the potential for cross-contamination with other allergens, tested through nutritional profiling. For example, a food that is free of peanuts may still be contaminated with trace amounts of peanuts if it is produced on the same equipment as another product that contains peanuts.

To prevent cross-contamination, manufacturers need to implement strict allergen control measures, such as thorough cleaning of equipment and dedicated production lines for allergen-free products. They also need to label their products clearly to inform consumers of any potential allergens, and must follow the regulations set by the FSANZ and other regulatory agencies.


In conclusion, allergen testing, including testing for pesticide residues, is an important step in ensuring the safety and quality of the food supply. Through the use of laboratory-based techniques and immunoassays, food manufacturers can detect and quantify potential allergens and contaminants, and take appropriate action to prevent them from reaching consumers. This helps to protect public health and promote confidence in the safety and integrity of the food we eat.

For more information on pesticides, contact a professional near you.