Andrei Deiu: natty or not?
Confirmed Romanian-British IFBB Men's Physique pro, Olympia top-five, Instagram aesthetics icon
Short answer. Verdict: confirmed. At the peak physique on this page, Andrei Deiu is 5'11" (180 cm) and 181 lbs (82.1 kg) at roughly 5% body fat. That works out to an FFMI of 24.1, against the ~25 mark cited as the natural ceiling.
The numbers (estimated)
| Peak physique | Mr. Olympia Men's Physique (2020), 181 lbs stage-lean |
|---|---|
| Height | 5'11" (180 cm) |
| Weight | 181 lbs (82.1 kg) |
| Body fat | ~5% |
| FFMI | 24.1 — ~25 is the cited natural ceiling |
Era by era (estimated)
| Era | Year | Age | Weight | Evidence | Body fat | FFMI |
|---|---|---|---|---|---|---|
| Overweight teen (baseline) | 2011 | 15 | 190 lbs (86.2 kg) | reported | ~28% | 19.2 |
| First title, three years in | 2014 | 18 | 160 lbs (72.5 kg) | reported | ~6% | 21.0 |
| Mr. Olympia stage | 2020 | 24 | 181 lbs (82.1 kg) | reported | ~5% | 24.1 |
| "Off gear" off-season (his words) | 2024 | 28 | 198 lbs (90 kg) | reported | ~10% | 25.0 |
FFMI over time (estimated)
FFMI per era (values in the table above). Hover a point for details.
Note. Every number below is a reported figure or our own photo read, not a measurement. See the methodology page for how we judge.
Andrei Deiu closed his own file in 2024: discussing an off-season break, he described being “almost 5 months off gear” and talked through what being natty again felt like. You can only come off what you were on. Confirmed, in his own casual phrasing, as is standard in his untested pro division.
The timeline
The arc is genuinely impressive even with the asterisk. An overweight gaming teenager at 15 — about 190 lbs (86 kg) at a heavy 28% — he cut and rebuilt into a title-winning 160-lb (72.5 kg) physique within three years, then climbed for a decade to a fifth-place Olympia Men’s Physique finish at about 181 lbs (82 kg) stage-lean — FFMI around 24 at 5’11” (180 cm), with his recent “off gear” off-season reported at 198 lbs (90 kg). The teenage years explain the early speed; the assisted years explain the rest; his own words sort which was which better than our math needed to.
Verdict
Confirmed — by his own “off gear” framing, offered without drama, the way his generation of pros increasingly does. Credit where due: the work ethic that turned a 15-year-old gamer into an Olympia top-five was never in the vial.
In their words
“I usually stay lean year round, but at the same time, I try to put on some quality muscle.”
Common questions
Is Andrei Deiu natty or on steroids?
This site rates Andrei Deiu as confirmed, the only verdict here stated as fact. It takes an admission, a failed test or an official record, and the one behind this page is cited in the sources below.
Has Andrei Deiu ever failed a drug test or admitted to using PEDs?
The record that settles this page is listed in the sources below and described in the article above. It is what makes the verdict confirmed rather than an opinion.
What is Andrei Deiu's FFMI?
About 24.1. That comes from 5'11" (180 cm) and 181 lbs (82.1 kg) at roughly 5% body fat, normalized to 1.8 m. Drug-free lifters in the Kouri 1995 study topped out near 25.