Coming from keto to a glucose tolerance test isn't just ludicrous - it's going to get the wrong result and can potentially hurt the patient with a glucose spike. We produce glucose from fatty acids when in ketone mode (glucogenesis). Adding a glucose bolus on top of that - particularly to someone with insulin control issues - is medically irresponsible. What happens to your glucose/insulin balance over the next couple of days?

As someone who does IF, I'm careful about glycemic loading when I break my fast.

The group the article author is sourcing his data from is questionable - going to mute him for getting my blood pressure up as I haven't been this annoyed since the ivermectin thing.