Why? Because many TV programmers, even if they’re not stupid enough to say so publicly, believe most of us might be OK with shows like NBC’s “The Biggest Loser” or Bravo’s “Thintervention with Jackie Warner,” which focus on trimming the fat, but that we’re not as interested in seeing them off the treadmill, much less dating.

Why aren’t there more fat people on TV? | Philadelphia Daily News | 11/09/2010

By the time they reach their late 20s to early 30s, people who were obese between 12 and 21 are more than seven times more likely than normal-weight or overweight peers to develop severe obesity — defined as having a body mass index, or BMI, of 40 or more — according to the study published in the Journal of the American Medical Assn.

Obesity often follows the young into adulthood – latimes.com