What is the normal range for blood glucose levels?

The normal range for blood glucose levels is typically between 4.0 to 5.4 mmol/L (fasting) and up to 7.8 mmol/L (2 hours after eating).

Blood glucose levels, also known as blood sugar levels, are the amount of glucose present in your blood. Glucose is a type of sugar that your body uses for energy, and it comes from the food you eat. The normal range for blood glucose levels is typically between 4.0 to 5.4 mmol/L when fasting (not eating anything for at least eight hours). After eating, your blood glucose levels will rise, but they should not exceed 7.8 mmol/L two hours after eating.

These values can vary slightly depending on the individual and the laboratory that analyses the blood sample. However, these are the generally accepted ranges. It's important to note that blood glucose levels can fluctuate throughout the day. They are usually lowest in the morning before you eat breakfast and can rise after meals due to the increase in glucose from the digested food.

If your blood glucose levels are consistently higher than the normal range, it could indicate a condition like diabetes. In contrast, if they are consistently lower, it could suggest hypoglycaemia. Both conditions require medical attention.

The body regulates blood glucose levels through a process called homeostasis. The pancreas plays a crucial role in this process. When blood glucose levels rise, the pancreas releases a hormone called insulin, which helps cells absorb glucose and bring the levels back down. If blood glucose levels drop, the pancreas releases another hormone called glucagon, which triggers the release of stored glucose to raise the levels.

Understanding and maintaining your blood glucose levels within the normal range is essential for overall health. It's particularly crucial for individuals with conditions like diabetes, who have to monitor their blood glucose levels regularly to avoid health complications.