Healthcare is a privilage, as well it should be, awarded to those who take really good care of themselves through low carb, ZERO fatty foods, and an active lifestyle (I suggest 3-4 miles of jogging with at least 1 hour weight lifting).
4 miles of jogging burns approximately 250 calories, about the same amount of energy in a pack of Tic-Tacs. The human body is incredibly efficient; you can't meaningfully exercise your way to thinness. The obese, especially, develop primarily "slow-twitch" muscle that exerts force incredibly efficiently. But even if you were a professional athlete who could spend 8-10 hours a day, every day, working out - ten or twenty times the physical activity of the average American - you'll find that, at most, you'll only double or triple your caloric expenditures. You'll abundantly improve your
health, just as long as you don't
kill yourself.
And if you can't eat carbs, and you can't eat fats, and you can't eat proteins (
because they cause cancer) what's left, exactly? You have to eat
something, and your body will simply react to a calorie-restricted diet by extracting more calories from it. The obese overwhelmingly tend to eat
less than their healthy peers.
Mass-balance nutrition, like Oni is talking about, has to be put to bed. Your body has a set-point weight. Gaining weight and keeping it moves your set-point up. Lose weight to below that set-point, and your body will simply hoard calories to get you back up. Calorie intake has to be understood as an active and adaptive process that responds to your body's perception of its caloric needs, not just a passive process where the only input is your pie-hole. I'm sure that Oni, and others, can point to instances where a little discipline and exercise produced dramatic weight loss, but these will overwhelmingly be the loss of pounds that were gained only in the past few years. When we're talking about people who became obese as children
even as they ate less than their thinner peers, no realistic amount of exercise and calorie restriction is going to have much of an effect on their weight.