Adjust font size:

Site Search

The Hunger Project Bolen Report
Ohm Society

Questions for Dr. Kennedy
Welcome to Ask Dr. Kennedy. We encourage you to post your comments and questions here. We look forward to challenging questions as they are an education for us as well as for you. Please consider the following guidelines when posting:

Ask Dr. Kennedy is an educational service. Any medical advice on which you act should come directly from your personal physician.
Mention of any commercial products for sale will be removed.
Do not enter your title or message in ALL CAPS. If you do so, it will be removed.
Take care for your spelling, grammar, punctuation, and capitalization.
Water content of the human body
Posted by: Joe
Date: January 10, 2002 2:46 AM

If in early adulthood the human body consists of 65 % water, is this by volume or weight? Also, how many gallons of water actually is in the human body in early adulthood?

Edited 3 time(s). Last edit at October 4, 2007 2:56 AM by Dr. Kennedy.

RE: Water content of human body
Posted by: Ron Kennedy, M.D.
Date: January 10, 2002 6:44 AM

Since the body is very close to the density of water, sometimes more sometimes less depending on the percentage of body fat, and since 65-70% is an estimate, I think you could say either one. Let's say we examine an approximately 150 pound, better yet an exactly 70 kg. adult whose overall specific gravity = 1.0, exactly equal to warer. One cc of water weighs one gram, therefore 70 kg. x 0.65 = 45.5 kg. of water. As there are 2.2 pounds in a kilo this comes out to 100.1 pounds of water. As one gallon water weighs 8.33 pounds, that comes to almost exactly 12 gallons of water in a 70 kg. (150 pound) person.

Edited 3 time(s). Last edit at October 4, 2007 2:54 AM by Dr. Kennedy.

This Thread has been closed


health healing information, physician medical library medical informaion, health, healing, advertising
(345 words)