Glucose in your blood is used for energy for all parts of your body. When the amount of glucose, or sugar, in your blood drops too low, you have a low blood sugar, or hypoglycemia. Hypoglycemia is defined as a blood sugar less than 70 mg/dL.
If your blood sugar has risen to greater than 70 and you are planning to eat a regular meal within the next hour, you do not need to do anything else. If you are not planning to eat a regular meal soon after, eat a snack that contains protein, such as: