This website is the most interesting that I have come across in a while
It seems to be owned by a layperson with diabetes, Ken Stephens. It has an amazing number of articles
that talk about supplements I had never heard of, and why Berberine is so important but also the root causes of diabetes, something to do with AMPK malfunction in the mitochondria. I am a lay person as well so not in a position to evaluate his theories but each time I did a google search related to something he proposed (still working my way through the articles, read about half), I did find a scientific basis.
http://understandingtype2diabetes.com/berberine-type-2-diabetes/
It seems not to have been updated a few years, last comments left in 2018. I wonder what happened to him, if anyone has any information please let me know. Reminds me of Fung’s early work even though the owner here is not a doctor as far as I see