[UI_at_80x24]

  Yes, it was measured first thing, and yes it was the 'Dawn Effect'.

Within 4 hours it would fall into the 'safe-zone'.

  At that time my diet was 100% protein/fat,  0 carbs.

I assumed (and Doctor shruggingly agreed) that it was probably my body fat being metabolized and raising my blood sugar.

[ddorian43]

It's probably the protein. Not eating fat should also feel horrible too, messing hormones etc.

Source: Pretty well known in keto epilepsy/cancer/psychiatry. I do epilepsy keto diet. Having high protein will increase glucose & lower ketones (tested blood many times with just 2 ingridients beef & beef fat). I aim for 80%-90% of calories from fat. Or 2 to 1 weight ratio of fat and protein/carbs.

For T2D you probably need just 60% fat calories though.