Ok, now I think I understand.
With all due respect, “it sounds extreme somehow” is not a wise basis on which to decide how to proceed when it comes to significantly changing your eating habits. Nor is “chatting with a friend” the best way forward for most people to get the reliable guidance they require.
I strongly encourage you to read a whole lot more about the science and research available on these topics. Reading a forum like this can be interesting, thought-provoking, and even emotionally encouraging at times if you need it. But it is also full of viewpoints that might either be irrelevant given your own situation - or, worse yet, even dangerous. Hey, it’s the internet - right?
Having said this, there are lots of valuable links to access real peer-reviewed research to be found here. That’s worth a lot.
But in the end, you must do your own research.
Otherwise you will likely feel confused, overwhelmed, and ultimately dissatisfied with what starts happening with your body once you embark on this journey. Changes will occur - and you will then need to be confident in your own understanding of what’s happening and why.
To offer an analogy: Before you set out on this trip, get yourself a map of where you’re heading. And study it. You will be much better off.
Best wishes to you.