Giannis Antetokounmpo: natty or not?

Likely natty Two NBA MVPs, a title and Finals MVP, and the most-cited transformation in basketball

Short answer. Verdict: likely natty. At the peak physique on this page, Giannis Antetokounmpo is 6'11" (211 cm) and 243 lbs (110 kg) at roughly 8% body fat. That works out to an FFMI of 20.8, 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 Listed playing weight, 243 lbs
Height 6'11" (211 cm)
Weight 243 lbs (110 kg)
Body fat ~8%
FFMI 20.8 — ~25 is the cited natural ceiling

Era by era (estimated)

Era Year Age Weight Evidence Body fat FFMI
MVP years 2019 25 243 lbs (110 kg) reported ~8% 20.8

Note. Playing weight is the listed figure; the body-fat number is an estimate. The verdict is opinion, and here it is an opinion in his favour. See the methodology page for how we judge.

Giannis Antetokounmpo entered the NBA in 2013 as a teenager so thin that the highlight reels made a joke of it, and now looks like this. The before-and-after is one of the most posted images in the natty-or- not genre.

The arithmetic does not support the accusation.

The numbers

He is 6’11” and 243 lbs (110 kg). At that height, the FFMI on this page comes out well below the drug-free ceiling — below what a serious natural gym lifter of average height reaches. Height squared is the denominator, and 6’11” is an enormous denominator.

The transformation is real and it is also the most ordinary transformation in this genre: a skinny 18-year-old filled out into a man in his late twenties, with professional food and professional coaching, over a decade. That is what happens to teenagers. It is only startling because it happened on television.

What is not on the record

No failed test, no allegation, no investigation. Wikipedia’s article records no doping accusations of any kind.

Verdict

Likely-natty — the numbers are not merely short of the ceiling, they are unremarkable. This page exists mostly to say that the famous before-and-after picture is a picture of growing up.

Common questions

Is Giannis Antetokounmpo natty or on steroids?

This site rates Giannis Antetokounmpo as likely natty. 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 20.8, against the ~25 mark cited as the natural ceiling.

Has Giannis Antetokounmpo 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 likely natty.

What is Giannis Antetokounmpo's FFMI?

About 20.8. That comes from 6'11" (211 cm) and 243 lbs (110 kg) at roughly 8% body fat, normalized to 1.8 m. Drug-free lifters in the Kouri 1995 study topped out near 25.

Sources

Others in the same FFMI range

See every celebrity we've checked.