http://www.elcoloquio.com
auther: date:2013-06-26
sources:http://www.elcoloquio.com
Water versus Fluid The words water and fluid are often used interchangeably when discussing the intake of liquids by mouth to maintain good hydration.http://www.elcoloquio.com Water is indeed a fluid, but it is just one type. However, this does not happen to people who routinely drink caffeinated beverages. They develop a tolerance for caffeine and have a consistent urine output whether or not the fluids they are taking in contain caffeine or not. Even among those who do not routinely drink caffeinated beverages, there is no diuretic effect when caffeine-containing beverages are consumed in normal serving sizes. Therefore, the available evidence indicates that caffeine-containing beverages are no less hydrating than other fluids and can count toward fluid recommendations. 1 Alcohol and fluid balance The body's fluid balance is largely regulated by a hormone called vasopressin. Also known as the anti-diuretic hormone (ADH), the pituitary gland releases it when the body needs to conserve fluid. In essence, ADH signals to the kidney that it should concentrate the urine and keep the body's blood volume up. Alcohol blocks the release of ADH by the pituitary gland in a progressive fashion. In other words, the more concentrated the alcohol is in a beverage (and/or the more beverages consumed), the more urine the body releases and the gap shifts from balanced, to less hydrated, and, when alcohol is taken in excess, to dehydration. It is not possible to develop a tolerance to this effect2. Because alcohol-containing beverages have the potential to adversely impact fluid balance, they should not be included toward meeting fluid recommendations. The Weight Watchers Good Health Guidelines recommend drinking six glasses of fluid a day. All fluids, except alcohol-containing beverages, count toward meeting this guideline.
not set
res://mshtml.dll/about.moz
this article reads 593 times
|