I've found this to be the case too. Been on mostly keto for roughly 2-3 years, done several short and long fasts, and I test my blood daily. There were days aft

I've found this to be the case too. Been on mostly keto for roughly 2-3 years, done several short and long fasts, and I test my blood daily. There were days after fasting and then eating something that really should've knocked me out of ketosis where it barely made a dent. The whole thing is really very interesting.