Alex Pereira: natty or not?
Uncertain "Poatan" — Glory kickboxing champion at two weights, UFC champion at two more
Short answer. Verdict: uncertain. At the peak physique on this page, Alex Pereira is 6'4" (193 cm) and 205 lbs (93 kg) at roughly 9% body fat. That works out to an FFMI of 21.9, against the ~25 mark cited as the natural ceiling.
No official record settles this. What follows is opinion and analysis based on public numbers — how we judge.
The numbers (estimated)
| Peak physique | Light heavyweight, 205 lbs; Wikipedia lists him at 251 lbs out of camp |
|---|---|
| Height | 6'4" (193 cm) |
| Weight | 205 lbs (93 kg) |
| Body fat | ~9% |
| FFMI | 21.9 — ~25 is the cited natural ceiling |
Era by era (estimated)
| Era | Year | Age | Weight | Evidence | Body fat | FFMI |
|---|---|---|---|---|---|---|
| Glory middleweight champion | 2017 | 30 | 187 lbs (85 kg) | reported | ~9% | 20.0 |
| UFC light heavyweight champion | 2023 | 36 | 205 lbs (93 kg) | reported | ~9% | 21.9 |
FFMI over time (estimated)
FFMI per era (values in the table above). Hover a point for details.
Note. Fighting weights are division figures and body-fat numbers are estimates. The verdict below is a statement of what we do not know. See the methodology page for how we judge.
Alex Pereira held the Glory middleweight title with five defences, the Glory light heavyweight title, then the UFC middleweight and light heavyweight titles — champion in four divisions across two sports, starting his MMA career seriously in his thirties.
Why the question gets asked
He is 6’4” and listed at 251 lbs (114 kg) out of camp, visibly dense at an age when most fighters are declining, and he arrived in the UFC already finished as an athlete rather than developing there. That combination is what makes people ask.
Why we do not answer it
The answer would have to come from the arithmetic, and the arithmetic does not deliver here. His FFMI at light heavyweight is high-normal for an elite athlete of his height, not an outlier. He fights in a division with a scale, so mass is capped by the rules. He also competes under a programme that tests UFC athletes with no notice, year round, anywhere in the world, and no adverse finding is on his record.
There is no admission, no test failure, no investigative record. There is a big man who hits hard and started late.
Verdict
Uncertain — the honest tier. A tested athlete with no findings and no numbers that clear the line is not someone this site can call either way, and we would rather say so than pick the answer the comments want.
Common questions
Is Alex Pereira natty or on steroids?
This site rates Alex Pereira as uncertain. That is an opinion drawn from public numbers, not a statement of fact: the peak physique on this page works out to an FFMI of 21.9, against the ~25 mark cited as the natural ceiling.
Has Alex Pereira ever failed a drug test or admitted to using PEDs?
Nothing of the sort turned up in the sources on this page. Had it, the verdict would read confirmed instead of uncertain.
What is Alex Pereira's FFMI?
About 21.9. That comes from 6'4" (193 cm) and 205 lbs (93 kg) at roughly 9% body fat, normalized to 1.8 m. Drug-free lifters in the Kouri 1995 study topped out near 25.