They ' re only about 1 percent of the United States population though . 1 . 6 billion is worldwide . <| sep |> Because they that is , the lineman that look fat are closer to Biggie ' s size than the Rock ' s . He ' s listed as 6 ' 5 and 260 lbs Vince Wilfork is three inches shorter and listed as 65 pounds heavier and a lot of people think that ' s too low . J . J . Watt is 6 ' 5 and listed at 290 . Pretty sure nobody is going to say he ' s fat and jigglycdn . comwpcontentuploads 201606 watt . jpg . Additionally , fat is a lot easier to gain especially large quantities than muscle . As others have said , their position requires them to simply weigh a lot . Why spent eight hours a day lifting weights and leaving no time for practice when you can practice for six hours , lift for two , and jut eat a lot ?