Patient was instructed on hypoglycemia. Hypoglycemia may result from a variety of causes that include: Alcohol. In some individuals, drinking alcohol can cause a drop in blood sugar levels. Hypoglycemia has been associated with chronic alcoholism and binge drinking. Hypoglycemia associated with binge drinking can be particularly severe if a person has not eaten within about 6 hours because fasting can impair the liver's ability to make new glucose.