These include lead, cadmium, arsenic, and mercury, which can bioaccumulate in the body over time and cause health problems.
They are used to control pests in crops and can remain in food products even after washing and cooking.
Toxic substances produced by fungi that can contaminate food products, particularly grains and nuts.
Common examples include:
Veterinary drug residues
These are substances used to treat animals that can enter the food chain and cause health risks to consumers.
For example, penicillin is an antibiotic commonly used that can travel up the food chain.
These chemicals, such as disodium EDTA, are added to food products to improve texture, flavour, and appearance. However, some additives can be harmful in large quantities.