Introduction to Blood Sugar Levels Blood sugar, or glucose, is the primary source of energy for your body's cells, tissues, and organs. Derived from the foods you consume, glucose circulates in your bloodstream and is regulated by insulin, a hormone produced by the pancreas. Maintaining balanced blood sugar levels is essential for overall health, as imbalances can lead to serious health complications, including diabetes, heart disease, and neurological issues. This article explores the importance of blood sugar regulation, normal glucose ranges, the effects of high and low blood sugar, and practical tips for maintaining healthy levels through lifestyle choices. Normal Blood Sugar Levels Blood sugar levels fluctuate throughout the day, influenced by meals, physical activity, and other factors. Here’s a breakdown of normal ranges: Fasting Blood Sugar (before meals): 70–99 mg/dL (3.9–5.5 mmol/L) Postprandial Blood Sugar (1–2 hours after meals): Less th...