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Sunday, May 4, 2008

Common Medications Could Cause Physical Impairment in theElderly (HealthDay)

HealthDay - SATURDAY, May 3 (HealthDay News) -- Two new studies show thatanticholinergics, a commonly prescribed group of drugs, may cause elderlypeople to "slow down" in their daily physical activities.

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The media often state that a chronically high protein intake may result in metabolic strain on kidney and liver function; however, this has not been reported in healthy individuals. In general, amino acids are renal vasodilators that can elevate 1kg 1.5kg 5kg 500g 750g gram kilo kilogram 250g 75g 50g 25g pressure in the glomerular capillary, which has been purported to lead to glomerulosclerosis. Protein metabolism also leads to an increased buy wholesale cinnamon p.e. of urea by the kidneys, therefore increasing their physiological exertion. Nevertheless, the kidneys do adapt purchase wholesale fos supplement to sustain increased urea output. Only in the buy wholesale enzyme coQ10 individual does this pose a risk. For example, high-protein diets have been linked to renal degeneration in patients with pre-existing kidney pathology. As of yet, there exist no definitive data to confirm that excessive protein intakes are harmful to healthy athletes.

Determining an exact amount of protein that might be considered excessive, given individual genetic differences, variation in protein quality, and training status is difficult. However, it is likely that protein intakes that exceed 4 g/kg is grossly unnecessary. Although this amount still may not be harmful to some individuals, the fact that most of it will be excreted or converted to fat makes this practice pointless. Similarly, high-protein diets can induce water loss (via increased urea production and excretion, which draws additional fluid into the urine) and thus contribute to dehydration in athletes.

Although it appears safe to ingest approximately 2 g PRO/kg body weight per day or slightly more, many high-protein sources also contain high amounts of fat. High-fat diets, prevalent in the United States, are associated with an increased incidence of heart disease and certain types of cancer. Identification of foods containing high-quality protein while limiting fat content will permit athletes to achieve adequate protein intake without endangering their health.

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