What is The Best System Dietary Weight Loss?

Thu, 22 Oct 2009 12:14:32 -0400

The dramatic increase in obesity in the world urgently requires studies to test the effectiveness and safety of diets to lose weight more widely used. Diets low in carbohydrates, high protein, high fat (referred to as low in carbohydrates) have been compared with diets low in fat, energy restricted. A meta-analysis of 5 studies with 447 participants and a recent one-year study involving 311 obese women suggest that a low carbohydrate diet is a viable alternative to a diet low in fat for weight loss and may have favorable metabolic effects. However, long-term studies are inadequate. A Mediterranean diet with a moderate amount of fat a high proportion of monounsaturated fats provides cardiovascular benefits. A recent review of several studies suggests that the Mediterranean diet was beneficial for weight loss. However, this positive effect has not been demonstrated. The common limitations of dietary studies include high dropout rate (15 to 50% within one year), small size, short duration, lacking evaluation of adherence, and differences in the intensity of intervention. Shai I. et al. **End Summary** Topics: Dietary Weight Loss]]>]]> About the Author: ]]> The findings suggest that Mediterranean diets, low carb diet can be effective alternatives to low-fat diets. The more favorable effects on lipids (with the low-carbohydrate diet) and glycemic control (with the Mediterranean diet) suggest that personal preferences and metabolic considerations might be important to identify dietary interventions.

Hormone Replacement Therapy: The Cardio-Protective Effect is not an Indication

Sun, 23 Aug 2009 02:58:10 -0400

In observational studies, morbidity and mortality from cardio-vascular (particularly coronary) were reduced in women who took estrogen (whether or not associated with progestin) for replacement therapy after menopause. As against, randomized studies on secondary prevention of coronary heart disease (coronary lesions background) with conjugated estrogens and medroxy progesterone acetate did not confirm a protective effect of estrogens. In addition, treatment was associated with an increased incidence of accidents thrombo-embolic and affections of the gallbladder. The introduction of a therapeutic substitution by estrogen is not indicated in the presence of pre-existing coronary lesions. Pending the results of randomized trials in primary prevention (no pre-existing coronary disease), prevention of coronary heart disease is not an indication. Recently published were the results of the first randomized study on the cardio-protective effect of hormone replacement therapy in postmenopausal women in good health, ie in primary prevention (the study "Women's Health Initiative "). In this study, 16,608 women (aged 50 to 79 years) received * either placebo * an association of conjugated estrogens (0.625 mg pd) and medroxy progesterone acetate (2.5 mg pd). The primary evaluation criteria were coronary heart disease (i.e. **End Summary** Topics: hormone replacement therapy]]>]]> About the Author: ]]> Although the increased hormone replacement therapy risks of breast cancer, coronary heart affection, of stroke and pulmonary embolism in the "Women's Health Initiative" is low in absolute terms, the investigators and the authors of a Editorial regarding the study believe it is unacceptable, especially since it is a study in primary prevention.

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What is The Best System Dietary Weight Loss?

Hormone Replacement Therapy: The Cardio-Protective Effect is not an Indication