This is a very interesting and thought provoking article. If everything in the rat lab is carefully controlled such as the food and water and these things would be sterile what does that leave? Certainly not disease or viruses, pure water ( if indeed it was) would not have exposure to hormones.........what does that leave? Click on the title link above and read the stats.
Here is a quote from the article:
- "The consistency of these findings among animals living in different environments, including some where diet is highly controlled and has been constant for decades, suggests the intriguing possibility that increasing body weight may involve some unidentified or poorly understood factors."