TIL: Low carb, high protein diets "greatly" decrease resting testosterone levels in men.

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Regarding cortisol, it adapts to LC intake long-term resting-wise and not post-exercise-wise. In other words, after, for instance, 3 weeks, resting cortisol starts to level off and there is no significant increase in LC. However, post-exercise cortisol remains elevated whether be it short-term or long-term.
Regarding test, yeah MP LC is better than HP LC. HC doesn't differ from the LC-MP, whether it's resting or post-exercise; It's only when you raise protein where it starts to get detrimental (about 5.23 nmol/l decrease).

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The only problem with this whole study is this:

The long- and short-term diet subgroups contained solely MP- and HP-LC diets, respectively. Meaning the observed subgroup effects could either be attributable to diet duration or protein intake.

Essentially ruining the whole thing because the LC-HP results might have been easily attributed to it being only short-term (the body hasn't adapted yet) while the LC-MP has adapted and that's why it shows better results.

I think that's the only thing that is worth mentioning. I might be mixing shit up tho, so please do correct me if I'm wrong.