Answer:
A food additive can provide benefits to the processors and consumers when used as intended. The use of an inappropriate quantity may be deleterious to the food or to the consumer. Approved food additives have effects on different areas of human health like allergies, hyperactivity in children and decrease in human immune response when they are applied over the limit suggested by the regulatory agencies. A major responsibility of the regulatory bodies is to regulate the use and approval of food additives and to evaluate their safety.
The most important principles established in food additives regulation is that food additives should be kept under continuous observation and must be re-evaluated whenever necessary in the light of changing conditions of use and new scientific information.