Food Adulteration PPT- An adulterant is a chemical substance which should not be contained within other substances beverages, and fuels) for legal or other reasons.The addition of adulterants is called adulteration.• The word is appropriate only when the additions are unwanted by the recipient. Otherwise the expression would be food additive. Adulterants when used in illicit drugs are called cutting agents, while deliberate addition of toxic adulterants to food or other products for human consumption is known as poisoning.