Diet Exercise for Weight Loss Reduces Hunger In Lean Women But Not Obese Women

Posted on July 7th, 2009.

For many, a good long run or bout of exercise, curtails appetite. But in a new study of diet exercise weight loss, for obese women, appetite is not suppressed the same as for their leaner counterparts.

“This may promote greater food intake after exercise in obese women,” said Katarina Borer, PhD, a University of Michigan researcher and lead author of the study. This information will help therapists and physicians understand the limitations of diet exercise for weight loss in appetite control of obese people.

http://www.sciencedaily.com/releases/2008/06/080617142925.htm

Dr. Borer wanted to better understand how changes in body fat level influence appetite and a hormone called leptin, which curbs appetite when body fat increases in animals. If leptin levels rise, it supposedly shuts off appetite and motivates physical activity to burn calories. Although, those individuals considered obese become fatter and their leptin levels rise, but their bodies become resistant to the actions of this hormone.

Dr. Borer says the hormone doesn’t do the job it supposed to do as it does in lean people. In research funded by the National Institutes of Health, Borer’s group studied 20 postmenopausal women who underwent specific diet exercise weight loss routines and ate weight-maintenance meals. Subjects recorded their appetite levels. Blood samples were collected for hormone measurements. Overall, the obese women claimed they were less hungry than lean women before meals and reported no appetite suppression during exercise, Dr. Borer said.

As expected, obese women had much higher leptin levels than in lean women, the study data showed. But during the intense diet exercise weight loss routines, lean women had reduced production of leptin, the obese women did not. Only moderate-intensity exercise lowered leptin in obese women.

Obesity interferes with leptin’s detection of exercise energy expenditure and with appetite suppression says Dr. Borer. She advises that perhaps obese women need to consciously watch their calories because some of the hormonal fullness signals don’t seem to work as well.

This is a good revelation but what strikes me as strange is drawing the conclusion that moderate-intensity exercise is not good enough as diet exercise weight loss? Any exercise goes a looooong way towards feeling fitter and having more energy. It needn’t be high-intensity just so one can get maximum calorie burnage. Calorie reduction is still the best way to lose weight naturally. And if your body does not currently register the signals of high levels of leptin, signaling appetite suppression, then simply take an appetite suppressant. It’s easy and gets the job done. I know just the one. Yes, I am biased. I believe it’s the best natural appetite suppressant on the market or I wouldn’t have a thing to do with it
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