Fasted 13 Hours Instead 8 12 Blood Sugar Test Expert
Indian Express
For fasting blood sugar tests, an overnight fast of 8 to 12 hours is typically advised because it creates a standard window to evaluate how the body manages glucose without food.
“For fasting blood sugar tests, an overnight fast of 8 to 12 hours is typically advised because it creates a standard window to evaluate how the body manages glucose without food. When the fasting period extends beyond this range, the body activates its natural energy-maintenance systems. In response, the liver may release stored glucose into the bloodstream to maintain energy, especially for vital organs like the brain,” said Dr Negalur.
DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.
As a result, some people may notice slightly higher blood sugar levels, even after fasting longer, Dr Negalur continued.
“For others, particularly those without diabetes, the difference may be minimal. Factors such as age, medications, stress, sleep quality, physical activity, and overall metabolic health can also affect the final reading,” said Dr Negalur.
The key takeaway is that consistency is important. For future tests, try to stick to the fasting duration your doctor or laboratory recommend. “This helps ensure that results can be accurately compared over time and decreases the chance of variations caused by differences in fasting duration rather than actual changes in blood sugar control,” clarified Dr Negalur.