The normal fasting blood sugar range is 70-99 mg/dL. This baseline measurement, taken after an overnight fast, provides crucial insights into your body’s ability to regulate glucose, a key factor in overall health. Learn what normal, high, and low blood sugar levels are for people with diabetes and how to manage them. Find out the symptoms, causes, and treatments of hyperglycemia and hypoglycemia. A normal blood sugar range for a healthy adult (male or female) after 8 hours of fasting is 70-100 mg/dL. Discover the normal blood sugar levels chart for healthy individuals and diabetics. Learn ideal fasting, post-meal, and daily glucose ranges for better health management.