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How long and how did you know you were in ketosis
marisanne
Posts: 38 Member
Question of the day 
How long does it truly take for your body to enter ketosis. I didn't do very great yesterday but Saturday and Sunday I did. I have lost 3.5lbs which I know is water weight. But I am just wondering how long it takes to actually get into ketosis if I stay 25 grams or less of carbs. Also is there any certain feeling you get that lets you know you have entered into it?
How long does it truly take for your body to enter ketosis. I didn't do very great yesterday but Saturday and Sunday I did. I have lost 3.5lbs which I know is water weight. But I am just wondering how long it takes to actually get into ketosis if I stay 25 grams or less of carbs. Also is there any certain feeling you get that lets you know you have entered into it?
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Replies
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About a day. How do you know? Because you're still alive.
Your brain burns about 500 kcal/day. It can only burn glucose or ketones. So if there's plenty of glucose, it'll burn about 125g/d. If you restrict carbs, it'll burn the glucose stored in your liver glycogen -- about 100g. Then it HAS to switch to ketones for fuel. So at 25g carbs, you'll burn through your liver glycogen in about a day.0
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