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.
The Food and Drug Administration regulates food preservatives, and while they're not all bad (antioxidants such as vitamins C and E are used to keep certain foods from spoiling, for instance) there are some that you definitely want to avoid. The most effective way to keep preservatives out of your diet is to eat only fresh, locally grown foods. Those of you looking to incorporate more of such foods into your diet will absolutely love Alive in 5, a raw-food cookbook packed with simple meals you can prepare in five minutes.