MadSci Network: Medicine
Query:

Re: Is it healthier for my body to drink distilled, bottled or tap water?

Date: Sat Nov 20 09:33:59 1999
Posted By: Elizabeth Kunkel, Faculty, Food Science and Human Nutrition, Clemson University
Area of science: Medicine
ID: 942463335.Me
Message:

Distilled water is water that has been vaporized and recondensed and 
contains no dissolved minerals, such as chlorine, fluorine, iron or 
calcium.  Some of those minerals are beneficial for you, but if you are 
eating foods that contain them, there is nothing wrong with drinking 
distilled water.  Bottled and tap water are very similar to each 
other--they come from either surface water or ground water and are equally 
likely to be contaminated.  (Actually, it is that they are equally likely 
to not be contaminated, since our city water supplies are very unlikely to 
be contaminated).  The Food and Drug Administration regulates bottled water 
and requires that it meet the same standards as city water.  Bottled water
may taste different from tap water because the most bottling companies use 
ozone to disinfect their water while most cities use chlorine to disinfect 
their water.  Ozone doesn't leave a taste in the water like chlorine does. 
 However, some bottled water is simply city tap water that has been put 
into a bottle.  Bottled water is also usually low in fluorine, so if you 
are drinking bottled water, be sure to talk with your dentist about getting 
enough fluoride to have healthy teeth.  If you are going to drink bottled 
water, look for the trademark of the International Bottled Water 
Association (IBWA).  Members of this organization support the FDA 
regulations for safety of bottled waters. (F. Sizer and E. Whitney, 
Nutrition--Concepts and Controversies, 2000)

In summary, it doesn't really matter whether you drink distilled, bottled 
or tap water.  None of them are unhealthy.  The most important thing is to 
drink lots of water (at least 8 glasses a day), regardless of where you get 
it.   


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