From AI overview:
AI Overview
The average weight of an adult male depends heavily on location, with the average male in the United States weighing about
199.8 pounds (90.6 kg), while the world average for adult males is around 136.7 pounds (62 kg). Other factors like age, height, ethnicity, and frame size also influence an individual's average weight, which is different from a person's healthy weight.
Alexander Voronin was 45lbs or apx three stone greater than the average US male (who in photos seem large to my eyes), and almost seven stone heavier than the world average of 136.7lbs, so it is quite fair to describe him as grossly obese, rather than just obese, as would describe the regular tubby person one might meet in the supermarket. I think in some UK towns two-thirds of Brits are technically obese.