Sam Sulek: natty or not?
Confirmed The biggest fitness YouTuber of the 2023 wave — Spring Bulk, Winter Bulk, and an IFBB pro card by 22
Short answer. Verdict: confirmed. At the peak physique on this page, Sam Sulek is 5'11" (180 cm) and 265 lbs (120 kg) at roughly 15% body fat. That works out to an FFMI of 31.5, against the ~25 mark cited as the natural ceiling.
The numbers (estimated)
| Peak physique | Off-season bulk (2025), reported around 265 lbs |
|---|---|
| Height | 5'11" (180 cm) |
| Weight | 265 lbs (120 kg) |
| Body fat | ~15% |
| Started lifting | around age 15 |
| FFMI | 31.5 — ~25 is the cited natural ceiling |
Era by era (estimated)
| Era | Year | Age | Weight | Evidence | Body fat | FFMI |
|---|---|---|---|---|---|---|
| Diver and gymnast (baseline) | 2017 | 15 | 160 lbs (72.5 kg) | reported | ~10% | 20.1 |
| Early lifting | 2019 | 17 | 183 lbs (83 kg) | reported | ~12% | 22.5 |
| Spring Cut | 2024 | 22 | 229 lbs (104 kg) | reported | ~12% | 28.2 |
| Off-season | 2025 | 23 | 265 lbs (120 kg) | reported | ~15% | 31.5 |
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.
Sam Sulek settled his own question with a shrug. Asked, in effect, whether he’s enhanced, his answer on camera was: “that should be pretty obvious. If anybody hasn’t gotten to that conclusion on their own from watching these videos then… yeesh.” He then turned pro in the IFBB’s untested league, where the question isn’t asked. We take the man at his word: confirmed, by his own it-should-be-obvious.
The timeline the shrug covers
Sulek was a competitive diver and gymnast who started lifting around 15 — a lean 160 lbs (72.5 kg) athlete in 2017. By 2019, around 183 lbs (83 kg): a strong but natural-shaped two-year start. Then the curve leaves the chart. By his 2023 Spring Bulk series he was around 230 lbs, and by the 2024 cut roughly 230 lbs (104 kg) at a lean 12% — about 202 lbs (91.5 kg) of fat-free mass at 5’11” (180 cm), FFMI 28.2, at age 22. Against his 2019 self that is roughly 60 lbs of lean tissue in five years, tail-loaded into ages 19-22 — several times the natural ceiling for those training years, ending three points past the drug-free FFMI limit. His current off-season reports run around 265 lbs (120 kg).
The honest context
Sulek never ran a natty grift — no claims, no test-waving, no supplement-attribution theater; when asked, he pointed at the videos. His actual on-camera formula (heavy, simple training; whole-food volume eating; total consistency) is real and mostly excellent advice for the natural teenagers watching — right up to the part where the physique it produced is not reachable by the program being shown. The gap between the two is why he’s on this site: two million kids watch the workouts; the body doing them runs on more than the workouts.
Verdict
Confirmed — by his own plain-enough words and his league of choice, over a growth curve that had already answered the question. The interesting part was never whether; it’s that he’s the first of his generation who didn’t bother pretending.
In their words
“that should be pretty obvious. If anybody hasn't gotten to that conclusion on their own from watching these videos then... yeesh.”
Common questions
Is Sam Sulek natty or on steroids?
This site rates Sam Sulek 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 Sam Sulek 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 Sam Sulek's FFMI?
About 31.5. That comes from 5'11" (180 cm) and 265 lbs (120 kg) at roughly 15% body fat, normalized to 1.8 m. Drug-free lifters in the Kouri 1995 study topped out near 25.