Anyone who has followed the career of Gleison Tibau, which isn’t hard since he’s been in the UFC now since 2006, knows he’s a gigantic lightweight. As in, you couldn’t jump all over some newbie fan for asking if he’s a welterweight.

Case in point, in a recent report from MMA, two of Tibau’s trainers with American Top Team, revealed that the 30 year-old vet weighed around 181 pounds when he fought Jamie Varner at UFC 164. This means the BJJ black belt regained around 26 pounds from the weigh-ins on August 30th, to the fight itself the next night. That’s not something most fighters can accomplish, and if they do, it’s not done correctly. Tibau went on to score a split decision win over Varner.

The aforementioned report includes comments from Tibau’s trainers, Everton Bittar and Stephane Dias, about the fighter’s dramatic weigh cut and how they’ve got the process fined tuned. For example, Dias was quoted saying:

“During the fight week, he works on the technical part with striking coach Luciano ‘Macarrao’ and jiu-jitsu coach Marcos da Matta, but also maintenance the aerobic workouts to help weight loss together with a dietary restriction of solid foods and an increase in fluid intake ranging from six to eight liters per day (distilled water) — or water with zero percent sodium — for a period of two days after gradually reducing the water,” Dias said. “This causes the body to eliminate more water and not retain anything in the moments prior to weighing.”

“After this brief recovery, he eats light food which is quickly absorbed, like bananas, grapes, fruit salad, as well as Vitamin Water or Gatorade,” Dias says. “The weigh-in usually occurs late into the night and the athlete is already semi-recovered. We continue with the intake of low-fat foods that are rich in carbohydrates every two hours, and also make shakes with added glutamine, dextrose, maltodextrin and vitamins to obtain a super compensation carbohydrate and assist in performance the athlete. We also add calcium pills, potassium and magnesium due to dehydration to avoid cramps on fight time.”

It’s an interesting look at how Tibau can be one of the promotion’s, if not likely the sports, biggest lightweights. It’s also worth noting that Bittar claims they had Tibau as high as 186 for one fight, but that they noticed carrying that much weight affected his movement in the Octagon. 186…that is insane.

Stay tuned to MMA for all your UFC news and coverage.