@brenda, FWIW, I am hyperglycemic. Insulin-resistant. Have been for years. Sometimes my blood sugar would go scary high. I could have been diagnosed as diabetic except I always had some excuse for the doctor as to why it was high. Thankfully, my doc and I have a good relationship and she understands my situation. I never wanted a diagnosis of diabetes following me around for the rest of my life.
Anyway, potatoes don't raise my sugar. There is a transient spike but it goes right down. In fact, cooked and cooled potatoes have a beneficial effect on my sugars over time due to better gut function.
For whatever that's worth.
Also worth noting is that my sugars are still kind of high in the a.m., but they're pretty much normal at other times, and even in the a.m. they're no longer scary high or even diabetic high. Pre-diabetic but not diabetic. Whereas for a couple of years, based on self-monitoring with a glucose meter, I was diabetic. But I'm pretty confident that with some more sustained effort at a good whole foods diet low in omega-6 that I'll normalize my sugar. I've been saying that for a while but I have a lot of cellular damage to correct so it's taking a while. Longer than I hoped. But I think I'll get there. And I'm eating potatoes almost every day.