MMA, you so crazy sometimes.

Yesterday was the weigh-ins for the BattleGrounds MMA tournament – an eight-man, single-elimination shindig in Oklahoma and set for broadcast on PPV tonight – and the field of competitors in the tourney all made weight, with one of them going so far as to give blood to cut down to the 171-pound limit.

Not sweat. Blood.

The fighter was TUF and UFC washout Cody McKenzie, who’s always been crazier than a bag of squirrels in a clothes dryer. But his unique method of cutting down the pounds really takes the cake.

Curiously, this particular method isn’t certain medical doom for the person with the IV in his arm. As per MMAFighting:

When asked whether McKenzie’s curious weight-cutting strategy could be considered unsafe, SB Nation medical expert Dr. Ali Mohamadi explained, “There’s no question that among a number of weight-loss options, donating blood isn’t among those typically recommended. Interestingly, the short term side effects aren’t actually that severe; you can get lightheaded or faint for a few hours, but the actual volume of fluid that’s taken is replenished within 24 hours.

“The real risk is with frequent blood donations. It’s not recommended to give blood more than every 8 weeks or so because it takes about that long for the red blood cells that are lost to be replaced by the bone marrow. Frequent donations also can result in iron deficiency, which itself causes a decrease in hemoglobin, the molecule that transports oxygen from the lungs to the rest of the body. So while it may not be an issue immediately, it’s something that can definitely become an issue if this is an option he chooses frequently.”

Regardless of the safety of the weight cutting, already this BattleGrounds MMA show is shaping up to be the next big entertaining car crash that everyone will be talking about the next day.