I've been told that drinking coffee actualy dehydrates you... is this true?!
I've been told that drinking coffee actualy dehydrates you... is this true?
I can't understand this when 99% of a cup of coffee is water.
Answers:
Let's start with the basics. Your body needs water. Water is one of the most important nutrients in the body, making up approximately 75 percent of our brain and 70 percent of our muscles. Water is essential to almost all of a body's functions. Everyday, we use and lose water through sweating, urinating, and breathing. If we do not replenish our water supply, we become dehydrated. The consequences of dehydration range anywhere from slight headaches and muscle cramping to loss of consciousness and even death.
The drinks you mention ― beer, coffee, and cola ― are all water based. Even though they contain carbonation and caffeine, they are still a form of fluid. So if you were stuck in the middle of a desert, you would probably last longer drinking coffee and/or cola than you would if you drank nothing at all.
Nutritionists have traditionally not counted caffeinated beverages as part of their daily fluid intake, because caffeine, similar to alcohol, is a diuretic, a substance that tends to trigger urination. In this way, diuretics can contribute to dehydration. However, during the Spring of 2004, the Institute of Medicine issued new hydration guidelines that now advise women to consume 91 ounces of fluid (2.7 liters or approximately eleven 8-ounce cups), and men, 128 ounces (3.7 liters or sixteen 8-ounce cups), and, different from before, all beverages count. The report also stated that available research evidence does not support the argument that caffeine leads to cumulative body water deficits. Approximately 80 percent of an individual's total water intake comes from drinking water and beverages, including caffeinated beverages, while the other 20 percent comes from food. The report concluded, then, that caffeinated as well as non-caffeinated beverages contribute to total fluid intake. Because not all nutritionists and other health care providers agree with the report, hydration remains a hotly debated topic.
Again, back to basics: each person's water needs is different. People who live in hot climates, exercise and/or sweat a lot, or are ill, in particular, likely need more water than the average adult. One way to determine your level of hydration is to notice the color of your urine. If it's dark yellow or orange, you may be dehydrated. Urine that is very light yellow or clear and colorless like water is a sign of a hydrated body. And if you're thirsty, drink your fluids.
Source(s):
http://www.goaskalice.columbia.edu/2963....
the caffeine
The caffeine in both tea and coffee and to a much lesser extent in cocoa, make you lose more liquid than you take in by drinking them.
You should be okay though if you also drink the recommend 4 litres of water a day.
Yes.
yes it does do that.
Nope! Caffeine does dehydrate you, but you are also taking it water in coffee, much more than you are losing through caffeine.
The answer is yes and no... It depends on the quantity and strength you drink. Caffeine is a diuretic (it makes you kidneys remove more water from your blood and thus pee more) so in large quantities caffeine does dehydrate you. However, one cup of coffee will not.
Yes,that is very true because caffeine causes dehydration so does soda pop! If you are experiencing dehydration the best things to drink are water,and if you don't like water than Gatorade or Powerade sports drinks are an excellent choice! The reason being is because sports drinks have potassium and sodium which helps the body reabsorb the minerals and salts that it has lost through sweating,or vomiting or diarrhea. Sorry for too much information,but that is why sports drinks are an EXCELLENT CHOICE in the summertime when it is so hot and humid outside!! ;-)
The drug caffeine is a diuretic - it stimulates the kidneys to extract more water than usual from the blood. This water is sent to the bladder in the form of urine, and you know what happens to urine, don't you?
Any drink containing caffine will dehydrate, so coffee, red bull and cola are the worst culprits. You need to drink a large glass of water to combat the effects of even a small coffee, or switch to de caff.
Caffiene drinks are indeed diuretic. make me go like race horse
Yes but a cup of coffee is a cup of coffee when all mixed up together. Caffeine is a diuretic so it makes you wee more often. Which could lead to dehydration if you do not drink any plain water.
It does but dont let it stop you.
Coffee is king!
Yes anything contaning caffeine will act as a diuretic to your system.
I don't know if it does or not. But there are lots of coffee drinkers who look ok to me. If you like information on coffee, I found this you may enjoy reading.
wen i am thirsty, i luv a can of coke, although i hav heard this so yes i believe its true! x
yes it does coz of the caffeine in it! & apart from dehydrating you, it gives you headaches as well...BUT who cares...??? so does alcohol!!!!!