Most causes of abdominal pain aren't worrisome, and your doctor can easily diagnose and treat the problem. Sometimes, though, it can be a sign of a serious illness. Learn which symptoms to watch out for and when you should get medical help. What Are the Most Common Causes of Abdominal Pain? Whether you've got a mild stomachache, sharp pain, or cramps, abdominal pain can have many causes. For instance, you might have indigestion, constipation, a stomach virus, or, if you're a woman, menstrual cramps. Other possible causes include:
Concern had been expressed about the possible tumor-promoting effect of quercetin. Mild constipation and hair thinning were reported by two of 260 patients taking AS195, which contains red vine leaf extract that is rich in quercetin.
Quercetin is the aglycone form of a number of other flavonoid glycosides, such as rutin and quercitrin, found in citrus fruit, buckwheat and onions. Quercetin forms the glycosides quercitrin and rutin together with rhamnose and rutinose, respectively.lthough quercetin is under basic and early-stage clinical research for a variety of disease conditions, there exists no sufficient evidence that it has any beneficial effect in the human body.