No idea. I read the same things, but I do keto and all that.... Still, I use it almost daily in the kitchen, just to be on the safe side. (And I kind of got hooked on the taste anyway)
The standard turmeric is only good for cooking. To use turmeric for health take a tablet that has curcumin added that helps it absorb into the bloodstream
I take Turmeric and cinnamon as I have arthritis and they are both anti inflammatory, if they are contributing to my stable blood sugars too then Brucie bonus!