A number of additives and preservatives are added to enhance the
flavour and appearance of food and for prolonging its shelf life. They
are also used to help facilitate food processing, packaging and storage.
While some natural additives have been used safely for a long time, a
host of new, synthesized ones have taken their place and their frequent
use has raised safety concerns. Here is a look at some commonly used
food additives and preservatives and their potential health risks.