Quote:
Originally Posted by Tribal Warfare
That's easy, but beyond 3 it's hard because you'll start getting light headed and dizzy.
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I did okay for three days once but absolutely hit the wall at that point. It takes roughly three days of fasting to deplete the glycogen in your liver and muscles (assuming sedentary lifestyle) so that is probably why. You start running on ketones and glucose made from protein and it's harder to keep the glucose for your brain up. That's what causes the fuzzy thinking and dizziness.