How long does liver glycogen last during fasting?

The glycogen stores in the liver are limited and usually run out within 24 hours of fasting. Before attempting any prolonged fasting or extreme diet, please get your blood sugar and liver profile checked for safety. It's always best to let a doctor verify if your body can handle it.

Usually, your liver glycogen stores will last for about 18 to 24 hours. If you are doing short 16-hour fasts, your body handles it quite easily without completely running out of energy. Just remember to hydrate well with water during the fasting window to keep your organs happy.

I read that liver glycogen is usually gone within 12 to 18 hours of fasting, which made me so anxious when I tried intermittent fasting! I was constantly worried about my blood sugar dropping too low. If you feel dizzy or weak, please don't push yourself too hard and eat something.

According to my physician, liver glycogen is depleted in approximately 12 to 16 hours of fasting, depending on your physical activity levels. After this point, the liver begins gluconeogenesis to maintain blood glucose levels. If you have any underlying metabolic conditions, consult your doctor before trying extended fasting.

It generally gets depleted within 18 to 24 hours of fasting, after which the body starts using other energy sources. If you have high blood pressure or diabetes, long fasts can affect your system, so please get your routine checkups done. Lifestyle changes should always be safe and gradual.