Achieving very low body fat levels (e.g., 7%) is primarily a function of nutritional consistency and willingness to make sacrifices, not training.

“my Jiu-Jitsu coach a gentleman named Mr will Starks phenomenal professional MMA athlete will eats a very clean diet very very healthy diet but he has you know tons of freebies potato chips pizza here and there no big deal he trains for mixed martial arts he's a pro he has glut striations he walks around and lives his life at 7% body fat that's just how he exists in the world it would take him one cycle of training to turn pro he's drug free if you look at him in the gym and if you put on some posing and you looked at his glutes you ask some people in the gym what's that all about they be like man it must take a lot of hard work [ __ ] took no no work at all”