I often talk about the harmful effects of high blood sugar, but today we're switching gears to discuss why you don't want your blood sugar to be too low . The goal is to have a balanced blood sugar all throughout the day, but until you learn how to achieve that balance you may find yourself on the blood sugar rollercoaster of highs and lows. What is Hypoglycemia? Hypoglycemia is a condition caused by low blood sugar. Blood sugar < 70 mg/dL is considered too low and should