The definition of “prediabetic” went down 10 with the release of Metformin. Gee, I wonder if there’s a relationship there. /s
This is a benefit of being old. I remember when the only way to lose weight was “cut out the sugars and starches,” and I remember when there was no such thing as skim milk on the shelf! Also, back in the day, a good systolic blood pressure was considered to be your age + 100. Then they invented a bunch of new BP meds and every 10 years or so,“normal” gets defined as lower. Do those drugs lower death rates from all cause mortality? uh, no. Hell, only 25% of people who use them get lower BP! And then they’re worried about their BP all the time which probably does drive it up.
Question everything. And look into who paid for studies that said (whatever). Like if Coke, hidden behind some “healthcare initiative” name, funds a study on sugar being 'part of a healthy diet," you can toss that study into the trash. If a drug company tells us something, probably not reliable. Their #1 goal is profit. Your health is nowhere on their priority list.
Eating three meals over eight hours, limiting protein to 40 or 45 g per meal, will probably bring it down a tad if it’s important to you to drop it under 100. Protein does cause a slight rise in insulin. So the corresponding rise in fasting sugar is a cost of OMAD/2MAD to some people. Maybe you’re one of them.