Glen Powell: natty or not?

Uncertain Top Gun's Hangman, Anyone But You, Hit Man, Twisters, and the 2025 Running Man remake

Short answer. Verdict: uncertain. At the peak physique on this page, Glen Powell is 5'11" (181 cm) and 201 lbs (91 kg) at roughly 10% body fat. That works out to an FFMI of 24.9, 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)

Note. Every number below is our own read of reported figures and photos, not a lab measurement — treat weights and body-fat estimates as ranges, not decimals. See the methodology page for how we judge.

Glen Powell is billed at 6’0” (183 cm); height trackers argue for a bit under that, so we compute at 5’11” (181 cm) — the direction that makes his FFMI read higher, not lower.

The timeline

There is no untrained baseline on record. Powell played football and lacrosse in school and has been in front of cameras since his teens, so the earliest point we can price is his late-supporting-role years around 2012: an estimated 165 lbs (75 kg) at 15% body fat — 141 lbs (63.8 kg) lean, FFMI 19.4. An ordinary athletic young man.

For Top Gun: Maverick, his trainer Nick Mitchell’s gym describes a seven-week brief — broad shoulders, muscular chest and “blockbuster abs” for the shirtless beach football scene. By our read that put him around 181 lbs (82 kg) at 9% — 165 lbs (74.6 kg) lean, FFMI 22.7. Against the 2012 estimate that is roughly 24 lbs of lean mass in ten years, about 2.4 lbs a year: consistent, unremarkable natural progress for a man training through his late 20s and early 30s.

Then the pattern breaks. For the Running Man remake, at 37, reporting says he “packed on 20 pounds of muscle” and trained like an athlete — four days a week on a three-day split, with his strength coach telling Men’s Health the brief was to bulk him up as much as possible while staying lean. That lands him around 201 lbs (91 kg) at an estimated 10% — 181 lbs (81.9 kg) lean, FFMI 24.9, a whisker under the 25.0 Kouri et al. found as the drug-free ceiling.

The math

Scale weight is not muscle, so partition the claim before judging it. If the full 20 lbs went on at the same leanness, the 2022-to-2025 lean gain is about 16 lbs (7.3 kg) in three years. If the bulk was fluffier than the press photos suggest — say 12-13% rather than 10 — it is still 11 lbs (5 kg) of new lean tissue. Either way that is 3.7 to 5.3 lbs of lean mass a year, arriving in his mid-30s, on a frame that had been gaining at 2.4 lbs a year for a decade. The natural ceiling for a lifter that far into training is 1-2 lbs a year. This is new territory, not regain — he had never carried 200 lbs before — so muscle memory doesn’t discount it. A step change after a long steady plateau, past the age where testosterone helps, is the single loudest signal in this site’s method.

What cuts the other way

Every number in that flag is soft. The 2022 figure is a seven-week cut peak — a depleted, camera-day weight that probably understates his normal lean mass, which shrinks the jump. The “20 pounds of muscle” is a press line, not a measurement, and press lines inflate. His body fat in the Running Man press cycle is our photo read. Move each estimate a few points in his favor and the three-year gain compresses toward the top of what a first dedicated bulk — his first ever, with a full-time professional team, elite food and recovery — could plausibly deliver. And the destination FFMI, 24.9, sits at the top of the natural band rather than beyond it.

Powell has also never pretended the physique is effortless or the diet extreme — “If you made me truly diet, I’d be pretty grumpy” — which is the opposite of the impossible-calorie storytelling that usually decorates enhanced preps.

Verdict

Uncertain. The first decade of his timeline is clean: slow, steady, boringly natural. The Running Man jump is a genuine flag — new-territory lean mass at several times the ceiling for his training age, in his late 30s — but it rests entirely on a press figure and photo-read body fat, and a first professional bulk from a depleted starting weight can explain a real share of it. The tripwire: if Powell holds 200-plus lbs (91-plus kg) lean through his next few roles, or shows up bigger and leaner again at 40, the benefit of the doubt runs out and this page moves to likely-enhanced. A verified body-composition number from the Running Man prep would settle it in either direction.