From my long experience with exercise videos, not to mention weight loss gurus, I venture to say that very few of those leaders and promoters have ever been obese at any time in their lives. Most of these people either began their careers as fitness professionals, or gained a few pounds in midlife and came up with a system to fix their changing physiology. Not much of it applies to the problem of obesity in the larger (pardon the expression) sense.

Hence we get the overwhelming popular culture of "eat less, move more" and crazy unsustainable diets. We also get that hopeless statistic that "less than 5% of people who lose weight keep it off."

Too simple. You're never going to make any money with a plan like that!