[civilitty]

Putting on 100 lbs of muscle is impossible without steroids for 99% of people even with 10-15 years of constant training.

Estimates vary but 50 lbs of lean muscle mass is generally considered the natural maximum for men.

[glouwbug]

I think 100 was just a nice round number to make their point easier to read

[paulpauper]

even with steroids virtually impossible. the heaviest pro bodybuilders ever peak at around 270-290 lbs