This does an excellent job of explaining sugar as it applies to the average individual. I took a pack of sugar home from the restaurant and measured it. One can of coke contains 24 packs. I drank 5 per day. I quit immediately and lost 25 pounds.
For a diabetic, all sugars count as carbs. You did a good job of explaining “fast” carbs and “slow” carbs by absorption rate.
I learned everything you could want to know when I got married: