What is the average blood-sugar range after a 12-hour fast?

The average blood-sugar range after a 12-hour fast typically falls between 70-110 mg/dL. This range is considered normal for someone who is fasting and reflects the body's homeostasis in maintaining glucose levels. After fasting, insulin and glucagon work to stabilize blood sugar levels, and values within this range indicate that the body is effectively managing its energy supply without significant disruption.

Values lower than this range may suggest hypoglycemia, while values higher might indicate the presence of prediabetes or diabetes, hence the importance of maintaining blood glucose within this specified limit for optimal health. Overall, this range is recognized by various health organizations and is used by healthcare professionals to assess metabolic health and guide dietary recommendations.