An increased AST level is usually a sign of liver disease. Liver disease is even more likely when the levels of substances checked by other liver blood tests have also increased. An increased AST level may be due to any of the following:
In order to keep itself fresh, the lettuce gives off carbon dioxide, causing a slight odour. This carbon dioxide is not harmful and the odour should disappear quickly once the salad package is opened.
A preservative is a natural or synthetic ingredient that is added to products such as foods, pharmaceuticals and personal care products to prevent spoilage, whether from microbial growth or undesirable chemical changes.n most cases, preservative ingredients are used to protect the product and help it remain safe and perform as intended over the lifetime of the product. These products are regulated in the US by FDA under the cosmetic previsions of the law and manufacturers must determine that they are safe for consumer use.