The energy balance that regulates body weight decrease or increase energy expenditure depending on the intake but with a clear trend of saving energy, so that increasing intake spending increased slightly, whereas if the intake is reduced reduction in spending is much higher. That is, the answer clearly tends to conserve body fat as energy reserves.
“Dietary restriction, explains Dr. Monereo-response is accompanied by a neuro-endocrine and metabolic with decreased leptin and increased neuropeptide Y (NPY), which tends to restore the intake and reduce energy consumption so that the subject or increases not only recovers the lost weight but your body composition changes with a tendency to increased fat accumulation. ” In this respect, continually undergoing food restriction in order to want to lose weight without considering the weight loss as a change in lifestyle leads to the familiar phenomenon of yo-yo weight or cyclic know today, in the words of President the Seen, “which is accompanied by higher final weight, abdominal fat level increased to greater emotional instability, the onset of eating disorders, the frequency of developing metabolic syndrome, with the final increase of cardiovascular risk associated with diabetes 2 and hypertension. ”
So today should be considered irresponsible or induce weight loss advise when this is not necessary or are not re-educate the patient so as to be able to maintain weight loss. “Only to lose weight you will be able to keep in line with changes to be able to make in your lifestyle,” concludes Dr. Monereo. “A sustained restriction of intake is very difficult to achieve, exercise clearly helps, and anti-obesity drugs are likely to be indispensable.”