At least for tea, I am fortunate in that I have never used any sweetener in it. In fact it took me awhile to find a bottled iced Tea without any form of sweetener it.
It is Honest Tea non sweetened Peach Ginger Tea. Maybe you could heat it up.
My parents with both heavy sugar users, Ugh.
No they were not diabetics. Actually I know of no one in my extended family that is a T2.
There is some rumor that my grandfather was “old age onset” but not much is remembered about it.