Hypoglycemia, also known as low blood sugar, is when blood sugar decreases to below normal levels. This may result in a variety of symptoms including clumsiness, trouble talking, confusion, loss of consciousness, seizures, or death. A feeling of hunger, sweating, shakiness, and weakness may also be present. Symptoms typically come on quickly.
Tea brewed from dried bilberry fruits has also been used to soothe a sore throat or sore mouth tissue. In folk medicine, bilberry leaf has been used to treat a number of conditions including diabetes. Limited evidence from a few animal studies shows that it may have a decreasing effect on blood sugar.
In some regions, hibiscus is also blended with black tea. Hibiscus tea has traditionally been used to treat hypertension (high blood pressure) , lower fever, and treat liver disorders. Hibiscus is also rich in vitamin C and other antioxidants. A human study has validated that hibiscus tea, in an amount easily incorporated into the diet, is effective at lowering blood pressure in people suffering from hypertension[1].