Hypoglycemia is a blood glucose level less than 70 mg/dL (4 mmol/L) and results from too much insulin, not enough food, or excessive activity. An extra snack of 15 to 30 g of carbohydrates eaten before activities such as soccer practice would prevent hypoglycemia. A small box of raisins or a cup of orange juice provides 15 to 30 g of carbohydrates. The child or parents should not be instructed to adjust the amount or time of insulin administration. Meal amounts should not be doubled.