[nradov]

It is not at all a "known fact" that "avoiding too much red meat" is "good for you". There has never been a single large-scale, long-term randomized controlled trial which has shown such causality.

In general there are hardly any "known facts" in biology, least of all in human nutrition. All we have are probabilities. Most human nutrition studies that relate to this issue have been observational and relied on subject-reported data: in other words, junk science.

If there is an actual signal here one way or the other then it certainly has a much smaller impact on overall human health than other factors like energy balance, exercise, sleep quality, chronic stress, etc. There's a lot of other stuff to optimize first before we even think about the relative quantities of plant/fungus versus animal foods in our diets.

https://peterattiamd.com/qps1/