Dr. Berg talks about how long it takes to get back into ketosis after your cheat day. However, there are variables involved.
1. Your metabolism
2. Your age
3. How long have you been in ketosis beforehand
4. How strict are following your ketosis plan
5. How long you are cheating for Many people do not calculate the correct estimation of how fast your body can get back into ketosis after a cheat day before they can start burning fat and losing weight.
First of all, it takes time for your body to adapt and develop new enzymes and metabolism machinery. Adding more carbs, stimulating insulin will then shut down fat burning for at least 24-48 hours, or even up to a week depending on the variables listed above.