NBC's The Biggest Loser has pushed the limits of training obese contestants over the 8 previous seasons. Bigger and bigger contestants are drafted to compete in a weight loss contest that would challenge most overweight and even many normal weight people.

Now magnify this by what Biggest Loser trainer Bob Harper called a "daunting" effort for the largest Biggest Loser contestants ever. A daily regimen of extreme workouts and strict dieting is hard under any circumstances. Magnify that by carrying the burden of super morbid obesity. Click here to view an NBC Biggest Loser preview video.

Anyone with a BMI of 40-50 is morbidly obese. If you have a BMI above 50 you're considered super morbidly obese. Biggest Loser contestant Michael, at 6 foot 3 and 526 pounds, has a shocking BMI of 65.7. Twins James and John, at 6 foot 5 each and weights of 484 and 485, have an equally unhealthy BMI of 57.5.

Becoming the Biggest Loser while you're obese or morbidly obese takes super human effort. While that doesn't make this goal impossible, now we are watching the biggest contestants ever push themselves to unbelievable efforts.

 Obesity can started at as little as being 30 pounds overweight. Are you overweight, obese, or morbidly obese?

When was the last time you worked out up to 8 hours a day, and ate a calorie and fat restricted diet. And on top of that, you left family, home and job behind for an extended time only to dedicate every waking and sleeping hour of your day to losing weight? Imagine the pressure and stress these newest Biggest Loser contestants are under.

Two of the sickest Biggest Loser contestants ever are competing this year for the title of the Biggest Loser. Can a super morbidly obese person who is usually sedentary, sick and not used to strict dieting and grueling daily exercise stay in the Biggest Loser competition for long? Maybe.

Biggest Loser contestants tend to vote to keep the contestants they view as the weakest on campus. Playing the game well means being cut throat, not just being the nicest or doing your personal best. Last night's premiere saw five players go home.

Watch and see if the Biggest Loser competitors vote off the strongest players first, regardless of other factors. Who would you vote off of the Biggest Loser season 9, and why?