![]() So, it’s a natural phenomenon, and the fasting now allows your body to use some of the glucose for energy. The question is this – if you are not eating, and your blood glucose went up, where did that glucose come from? It can only have come from your own body (liver). If you are not eating, you want to use some stored glucose. ![]() These all have the effect of pushing glucose from liver storage into the blood. ![]() This is due to the effect of insulin falling and the rising counter-regulatory hormones including increased sympathetic tone, noradrenaline, cortisol and growth hormone, in addition to glucagon. Why would my fasting blood glucose numbers during my 18-24-hour fast be elevated, then come down to normal ranges after eating?įasting can definitely raise blood glucose. Started keto with intermittent fasting in January 2019. Jason Fung: Fasting & elevated blood glucose ![]() It’s time for this week’s Q&A about intermittent fasting and low carb with Dr. Why is blood glucose elevated when fasting? Do you need keto macro guidelines when fasting? What is the optimal way of breaking a fast? And, can you talk about the psychological part of fasting? ![]()
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