Hombres de peso NORMAL pierden grasa y ganan musculos comiendo bajo en HC, sin cambiar la cantidad de calorias que comian!

Resumen:
Unos hombres de PESO NORMAL que cambiaron de su dieta usual a una dieta baja en carbohidrato (menos de 50 gram/dia) por seis semanas perdieron una cantidad significativa de peso, aunque se les insto a que mantuvieran su peso.

Toda la pérdida de peso corporal resulto ser de grasa! De hecho, la masa magra aumento realmente, a pesar de ningunos cambios en régimen de ejercicios fisicos.

En promedio perdiero 3.3 Kg de GRASA, y ganaron 1.1 Kg de MASA MUSCULAR.

Este estudio también observó cambios hormonales y los autores atribuyeron la pérdida de grasa a las adaptaciones hormonales consecuencia de la dieta.
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A Ketogenic Diet Improves Body Compostion and Insulin Response

Reference:
Volek, J.S., Sharman, M.J., Love, D.M., et al., "Body Composition and Hormonal Responses to a Carbohydrate Restricted Diet," Metabolism, 51(7), 2002, pages 864-870.

Summary:

The following information is available at Pub Med and was not written by Atkins professionals.

The few studies that have examined body composition after a carbohydrate-restricted diet have reported enhanced fat loss and preservation of lean body mass in obese individuals. The role of hormones in mediating this response is unclear. We examined the effects of a 6-week carbohydrate-restricted diet on total and regional body composition and the relationships with fasting hormone concentrations. Twelve healthy normal-weight men switched from their habitual diet (48% carbohydrate) to a carbohydrate-restricted diet (8% carbohydrate) for 6 weeks and 8 men served as controls, consuming their normal diet. Subjects were encouraged to consume adequate dietary energy to maintain body mass during the intervention. Total and regional body composition and fasting blood samples were assessed at weeks 0, 3, and 6 of the experimental period. Fat mass was significantly (P <or=.05) decreased (-3.4 kg) and lean body mass significantly increased (+1.1 kg) at week 6. There was a significant decrease in serum insulin (-34%), and an increase in total thyroxine (T(4)) (+11%) and the free T(4) index (+13%). Approximately 70% of the variability in fat loss on the carbohydrate-restricted diet was accounted for by the decrease in serum insulin concentrations. There were no significant changes in glucagon, total or free testosterone, sex hormone binding globulin (SHBG), insulin-like growth factor-I (IGF-I), cortisol, or triiodothyronine (T(3)) uptake, nor were there significant changes in body composition or hormones in the control group. Thus, we conclude that a carbohydrate-restricted diet resulted in a significant reduction in fat mass and a concomitant increase in lean body mass in normal-weight men, which may be partially mediated by the reduction in circulating insulin concentrations.

Commentary:

The following information was written by Atkins professionals.

Normal weight men who switched from their usual diet to a carbohydrate-restricted diet (less than 50 gram/day) for six weeks lost a significant amount of weight, even though they were encouraged to maintain weight. The entire loss in body weight was from fat with lean body mass actually increasing, despite no changes in exercise regimen. This study also observed hormonal changes and the authors attributed the fat loss to hormones adapting to the diet.
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Fuente: http://atkins.com/Archive/2002/1/11-780071.html

IncreÃ*ble no solamente perdieron grasa sino ganaron músculo!!!! Y a qué horas me empezará a pasar eso a mi (que me urge ganar músculo) , será que es a hombres nada más.

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• Mail de bienvenida léelo completo incluyendo los links antes de postear : http://www.dietaatkins.com/showthread.php?t=15825

Que buen artículo!, no lo había leído. Yo aunque no soy de "peso normal" si puedo corroborar que se pierde grasa y se gana musculo y energía con Atkins, sobre todo si la combinas con buenas dosis de ejercicio

Slds