I doubt the gut microbiome plays a role in PFS.
#1, it is very unlikely you felt “90%” better on just 1 day of carnivore. How can we trust you to quantifiably measure the degree of your PFS anyways? Will the average, non researcher person be able to tell the difference between 25%, 50%, and 75% “recovery”?
#2, How would 1 day of carnivore diet effect your gut microbiome? What likely happened if the lack of carbs caused a spike in androgen sensitivity, or had some other positive effect on your androgen receptors that pushed you in a positive direction temporarily. It is not a “cure” nor is it a “recovery”. It’s just like how most PFS users feel better while sick, I think it’s because their immune system goes down while they are sick and that pushes their androgen receptors in a positive direction.
PFS is not a chronic infection, it is not an issue with gut microbiome, your gut microbiome has a negligible effect on your libido and most importantly finasteride, isotretinoin, antidepressants, ect have little to no effect on your gut microbiome. Any measurable effects you may present to me in studies can be explained by how the immune system is effected by PFS.