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.
1 For constipation due to dryness in the intestines, mulberry fruit is used with black sesame seed, ho-shou-wu, and hemp seed (which can be substituted by flax seed).  For chronic arthritis, mulberry fruit is used with ho-shou-wu and chin-chiu (qinjiao).