The vaccine also reduced by 66.5% the number of cases of postherpetic neuralgia and reduced the severity and duration of pain and discomfort associated with shingles, by 61.1%.
The processing of meat, by adding preservatives such as salt or sodium nitrite to prevent the growth of germs, or smoking the meat to preserve or enhance color and flavor, may add compounds that might increase the potential of these foods to cause cancer.oncern about the possible effects of food additives on health, including cancer, is one reason that many people are now interested in organic foods. Organic foods are often promoted as an alternative to foods grown with conventional methods that use chemical pesticides and herbicides, hormones, or antibiotics.
The most common preservatives, such as sorbic acid, benzoic acid, calcium propionate, sodium nitrite and disodium EDTA, are used to kill bacteria and fungus that cause rot. Other preservatives, such as BHT, BHA and propyl gallate, prevent food from changing color when exposed to oxygen.reservatives and additives are listed, however, on the ingredients list of any packaged food. While some packages will specify which ingredients are preservatives, others will simply state the name of the chemical.