One thing I am optimizing for is health and specifically the rate at which I can absorb and retain information. Amongst other things like overall well being and

One thing I am optimizing for is health and specifically the rate at which I can absorb and retain information. Amongst other things like overall well being and capacity to do sports and other activities. Ideally I want a diet that allowed me to maximize that without supporting the animal slaughterhouses built around the globe. Until today, I thought I found this perfect diet (whole food plant based). But now with these two articles I mentioned, I am confused who is actually correct. And sure, we all die one day, I just want to live a good life with least negative impact on other living beings and environment whilst still being the healthiest I can be. Hence this HN thread asking for opinions on how to achieve this.