This may of slipped by many people in the run up to this years 2018 world championships. In this excellent interview from Flograppling, the 2017 world champion outlined his current regime and plan to win double gold.
The most interesting part of the interview for me is when Meregali talks about the prevalence of steroids in Pro BJJ. Many people may not be shocked by this but a top competitor and prospect in the sport claiming that doping is commonplace should be cause for concern for the whole BJJ community. His comments start at 7.36 into the interview.