Jonathan Majors: natty or not?

Likely enhanced Adonis Creed's rival Damian in Creed III, Kang the Conqueror in the MCU, Magazine Dreams

Short answer. Verdict: likely enhanced. At the peak physique on this page, Jonathan Majors is 6'0" (183 cm) and 202 lbs (91.6 kg) at roughly 8% body fat. That works out to an FFMI of 25.0, 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)

Note. Some figures below are this site’s own labeled estimates, not measurements. See the methodology page for how we judge.

Jonathan Majors stands 6 feet (183 cm) by his own account and has said he started lifting weights in eighth grade — around age 13 — so every era below belongs to an experienced lifter, and the strict late-career ceilings apply. There is no true pre-training baseline for him; that makes any verdict weaker, and we say so up front.

In The Last Black Man in San Francisco (2019) he carried an estimated 199 lbs (90.3 kg) at around 17% body fat — 165 lbs (74.9 kg) lean, FFMI 22.2. A year later, for Lovecraft Country, we estimate 192 lbs (87 kg) at 13%: 167 lbs (75.7 kg) lean, FFMI 22.4. A gain of about 2 lbs of lean mass in a year — ordinary, natural-looking movement.

Then comes the jump. For Creed III and Magazine Dreams (2023) he reached a self-reported 202 lbs (91.6 kg) at an estimated 8% body fat — 186 lbs (84.3 kg) lean, FFMI 25.0, exactly the Kouri drug-free ceiling, held while very lean. The body-fat number is a photo read, not a measurement; at 10% the FFMI drops to about 24.4, still at the top of the scale.

The rate is the loudest signal. From 2020 to 2023 his lean mass rose about 19 lbs (8.6 kg) — over 6 lbs a year, three times the 1–2 lbs a year a lifter with two decades of training age can add naturally, arriving in his early thirties. That is the jump-after-the-plateau pattern this site weighs most heavily. The counterweights: his numbers before and after the jump look completely natural, the 6,100-calorie prep he described is real elite-level effort, and estimated body-fat error alone can move the FFMI by nearly a point.

There is no admission, no failed test, and no official record of any kind, so nothing here is stated as fact. Weighing a triple-ceiling gain rate at training age twenty-plus against soft body-fat estimates, our opinion lands at likely-enhanced for the 2023 peak specifically. What would soften it: a measured (not eyeballed) body-fat figure from that prep, or evidence he had held ~200 lbs lean in earlier years and was regaining, not building.